Well when I did have a gaming computer any game that has steam or valve required. Sorry put back and on to the next game. Sorry will not buy any program that requires me to have a third party software on my system.
Let me ask you people who love **** like this, what happens if the system like steam cashes for what ever reason. All the games you bought are gone. After a few weeks steam comes back online yet your games are still gone. Steam says all there customer data was lost and have no way of knowing who had what. To get your games you had back you have to send a list of the games, DLC, mods or what ever to steam with proof that you had purchased them in the first place. Do you have any way to prove you had those game? Nope.
Or
Lets say Steam goes under for what ever reason and there is no longer steam. Then you lost all of those games and will never get them back. The game disks that you do have will not work do to you cant connect to steam or will work for about two weeks then your steam component on your computer will tell you to connect to steam to update, yet do to steam is gone your cant making you game disk worthless.
I used to live in Eastern Europe before I moved to the western part and if you bought games on disc and the disc was damaged, whcih can happen since no storage media lasts forever, you were pretty much screwed. No publisher really gave a sh*t about that if it didn't happen withing the first two years or so. Digital distribution hasn't got that problem. Besides, it is pretty normal that you can't expect much support after two years, in Switzerland, where I live now, this is normal for almost every product and I'm sure it's the same in many countries.
If Steam "goes" down, and if you have some experience with it you know that this won't happen so fast, there are still means to play your games. First off, there are the no CD cracks which are still pretty easy to come by, even though they are technically illegal. Then there are still the publishers of the games who are concerned that their customers can play their stuff. Believe me, bringing Steam "down" financially is pretty unlikely.
And what about older games from Sierra on disc? I loved myself some Zeus, but where do you get support if you bought it doesn't work anymore? Yep, you're screwed, so digital distribution and retail sales. can have the same problems. But they're old and sometimes old stuff is not supported anymore. No company is legally responsible for entertainment products after such a long time, it wouldn't make sense.
There are basically two systems I completely trust these days.The first is Steam, because I'm using it since CS 1.6 forced me to, and I have experience with their support staff and know how the whole system works. It is sometimes a pain, but less than anything I had to go through with retail sales. The second one is GoG, because theose old games don't cost a fortune and I don't really give a flying f*** if it doesn't work anymore.
Steam offers me to get my game in different languages, which is practical since I speak more than one and sometimes enjoy something else than German or English. Steam offers me an easy way to establish a contact list and keep in touch with my fellow gamers in different multiplayer titles. Steam offers me the possibility to store some of my progress in the Cloud so I don't have to make backups everytime I use a different system. Steam offers me cheaper prices than any retailer in my country. Steam offers me a way to purchase older titles I loved, seriously, try to find KotoR 1 in a store nowadays. Steam offers me a way to compare my stats with my friends on many multiplayer titles, which is pretty neat for competetive players. Steam offers an anti-cheat solution which doesn't perma-ban me if I'm recording with FRAPS like Punkbuster used to. Steam offers me an easy access to DLC without forcing me to register with any single f'ing publisher. Steam allows me to install my games on any PC without restrictions, I can evan play my games on PC and iMac if I finally killed my brain and decided to buy an Apple computer. Steam offers me a single point of contact for first level support for any game.
These are all things that make me happy with Steam and not give a sh*t about retailers anymore. The only down right now is that every game has to be stored in the same directory as Steam, but I've got a 1 TB hard drive now, so I don't care. If EA's Origin will be nearly as good at some point, maybe I will start buying EA titles again. But retailers can die off as far as I'm converned.