I think CyberSundayz's concern is that free games that have microtransaction are typically unbalance for those who wanted to play for free.

If you dont want to buy the items, you will be owned by those who actually put money into the game. In the end, it actually become a race of who is actually putting more money into the game to get the best weapon,perks, cars or whatever.

I am fine with paying for it, as the developers still need money to develop and support it. However, with past experience from BF: Heroes and other F2P games, they tend to love to rent the item, than sell it to you. So, you get this cool gun for 3 days, after that, please buy again. It is annoying, and in the end, you probably end up spending more to play the game than buying a boxed game in the first place.

Those facebook game on the other hand, people are actually pouring money into them to the point that people are spending 10k USD on some stupid virtual farm to 100k USD from some middle eastern guy. Not all of us can do that, and i rather spend my 10k USD in investment on real farms than a stupid virtual farm.