Which is one of the reasons I like Turbine's take on the whole microtransaction gig. A good...90% of the items (not including things like adventure packs) you can buy are things you can find in-game. Yes, some of them are rare...exceedingly so, such as stat tomes and experience-boosting potions, but you -can- acquire them without buying them.
Also, you can earn your cash points through gameplay, and not just by buying them...though, purchasing them is far, far more efficient...if you have the money.