Now I will mention some of the most cheaper games on the store

Enigmo

A puzzle game with fluids... This has some time now on the App Store but its still one of the favorites cause its DLC

Tropical Towers

A very fun game where we have to build some bamboo stick towers so five crazy monkeys can have their bananas. A game very similar to World of Goo.

Fieldrunners

This looks just like another tower building game but is more than just that. This game needs a lot of thinking that make us spend hours in front ours iPhone or iPod Touch.

UniWar

I just have to say "Advance Wars" to save some words. A great strategy game for a incredible low price.

Airport Mania

This is one of those goofy games that you don't want to play but when you do it, you get stick to it.

Oh well, thats all for now...

Keep playing hard