I don't get this argument that Android users don't buy apps. Perhaps I'm the minority.
On my phone right now are: Anomaly HD (which if you don't have, get!), Armored II, Bloons TD 4, Settlers of Catan, Dead Space, Dungeon Village, Epic Astro Story, Fieldrunners, Fruit Ninja, Great Little War Game, Gurk and Gurk II, HexDefense, Homerun Battle, Jelly Defense, Majesty and the Frozen North expansion, Monopoly, Myth Defense (and all expansion maps), Pocket League Story, Quell, Quell Reflect, Retro Defense, Robo Defense, Sentinel 3, SpaceStation, Townsmen 6, UNO, World of Goo, Zombie Defense, Zombieville. Not installed (but purchased through the market) are Age of Zombies, Baseball Superstars 2011, Bejeweled 2 (which EA says doesn't work on ICS but works fine), Cell Wars, Heavy Gunner 3D, Reckless Getaway, Simcity Deluxe, Spirit HD, Star Armada RTS, Super KO Boxing 2, Tetris, The Sims 3, Tower Raiders GOLD, Towers Raiders 2 GOLD, and Train Conductor 2: USA.
I've also bought apps from Amazon but since I can't separate what I've bought from what I've obtained through their free app of the day program, I won't list them.
Even the games that I've spent $4.99 for (Anomaly HD) are well worth the money, especially when compared with the massive disappointment that Mass Effect 3 was at $79.99. (Actually, to clarify, ME3 was a good game with a fucking incredibly horrible, pointless ending, and is the first ME game I have no desire to replay whatosever.)