Do you ever buy "extras" for your phone/tablet apps?
I play games on my iPhone and iPad occasionally; I've even paid for a couple of them. It seems like the really fun apps, even the paid ones, lose their fun quite quickly unless you pay (more) money to get points or gold or whatever to be able to advance the game, open new levels, etc.
Two examples: Plants vs. Zombies ($2.99). Once you beat the game, there are other games, but they cost quite a lot of game money to unlock. You can, of course, buy with real money the game money. The Simpsons game, also a lot of fun, is pretty much impossible to play without doughnuts (game money). And , of course, you can pay real money to get doughnuts. They actually have an offer that costs $99.99 real dollars.
The PvZ bothers me more since I already paid to play the game. To completely play it, one would need to pay more money. The Simpsons game is free so it's more "fair" but still bothers me since they're getting money from ads and advertising for their show/network.
Do you pay for the extras?