See, I also got hooked to Tiny Towers.
...For about a day. Then maybe a dozen floors later, I suddenly crossed the 'wait, why am I wasting my time doing this?' event horizon and haven't touched it since.
I simply can't endure the empty grind, and every time I step into any of the 'addicting' games about simple, endless progress...I can't do it. The fact that I'm not doing anything there and getting even less out of it comes at me time and again.
Luckily, this has also kept me out of World of Warcraft.