eventually you can get sick of anything though right?
infinite > finite every time
Yes you can. It happens sooner, rather than later.
What if it was infinite hours until Skyrim's release?
I'm sure thats true but still, its better to have them then have nothing to do at the end of the game.
Hahaha no not really. Sooner rather than later, you start thinking "Man. I've done this exact quest variant before. Same old same old" They'll only be good if you focus on the finite quests and the infinite ones just happen occasionally. Ultimately it would be best if the infinite quests kept on being created by Bethesda and released via patches. But that aint going to happen..