» Tue Jun 05, 2012 4:37 am
Unless people have continued doing them they would not know. Unless they have the game guide of course.
YES!!!! They do get you something later.
At first, as someone stated above, you have to do at least 5 jobs in the 5 major holds to get the "City Influence" jobs. Doing the City Influence jobs gets you a fence in that city to sell your stolen items to and they carry up to 4000 gold pieces. You will also get 3 Thief Caches in each city as well. And on top of that, you also get 4 new vendors who set up shop in the Ragged Flagon. Oh, and a Guild Leader chest in front of the desk in the Cistern that replenishes every so often.
After that, if you continue to do the jobs for Vex and Delvin, you get trophies that will display on the shelves behind Mercers desk in the Cistern along with the 'larceny" items you sold to Delvin.
When these trophies show up depends on how many jobs you've done.
You get one after 5 jobs.
The next after 25 Jobs,
Then another after 50 Jobs, then 75 jobs.
Once you've done 125 jobs, you'll receive a safe filled with gems and other stuff that will appear to the right of the shelves displaying your trophies.
So yes, doing the jobs is worth it.
Check out this link. Most of what I said can be found here with some pics as well.
http://elderscrolls.wikia.com/wiki/Thieves_Guild_(Skyrim)