What's the point of pre-purchasing a game without any discount?

GMG usually offers much bigger discounts on preordered games, usually as much as 25%. Plus, you can use additional vouchers to lower the price even more.

Because if you really want get the game you don't need any bonuses to make pre-purchase, that's the all point. Developers stimulate people to prepurchase their product by adding bonuses and discounts, but it's not necessarily, it's not their duty. Don't forget that you prepurchase games to get them as soon as they will be realeased, if you want discount then wait until it will be on discount, on summer sale for example

To support the devs, maybe?

Sometimes you get a special offer, unique DLC or even complete games. WHen I pre ordered Xcom i got a free copy of Civ V

hats

Some people have the money? Some people want to play as soon as the game is released? Some people like TF2 items?

Some people just dont know what preordering means.