Why Do Iphone Games Suck?

Pretty much everyone I know owns and itouch or an iphone these days and they are always playing these ridiculous games from the app store. I know, I shouldn't judge because I own an itouch as well and I do play the games from time to time. The thing about the games that annoys me is the fact that the fun factor from the games is incredibly brief.

Personally, the only games I play are Tap Tap Revenge or Word Warp. I feel that they are somewhat entertaining but I only really play them when I am waiting in line at the doctors office or when I'm bored out of my mind sitting on a subway train. I can't seem to figure out why there is no lasting appeal to the games. Maybe the ones I play are really repetitive and have nothing new to offer me gameplay wise. Why can't the be games on the iphone be like the Pokemon games on the gameboy, which can last for hours and hours and would keep me occupied and would be thoroughly entertaining. I am just tired of playing all these short mini games lately, considering I need something that can occupy me for at least an hour at a time. I want to be able to enjoy the games, I would assume that in this day and age an iphone or itouch would have the capacity to allow us to play games that are decently long. Maybe I need to get out more and search around in the app store, maybe I will find something that will please me. Until I find something I am not installing anymore games on my itouch, they are just a waste of space.