Wow, I just found a way to get 25% discount on every game in Steam.

Basically:

1.) Buy keys from SourceOP for $1.50 or less. (via Paypal)

2.) Sell keys at Steam market for $2.00

3.) ???

4.) Profit

Involves making transactions out of the Steam trading system though, which means if you get scammed, you're fucked.

Yep, this is something that should never be spoken of.

:D

And more keys and more keys and more keys!!!1!

This, so much this.

+1 Best way to do it

re-tart-ed?

Well, I already use Paypal to buy games on Steam anyways.

Steam cilent will give you a virus

I have them @ 1.39

You can buy... more than one, you know? :P

God, do I need to teach you the match or will you figure it out?

Buy 30 keys at $1.50, sell them for $2 each. Voilà!
You now have $60 Steam wallet that cost you $45.

Yeah, as long as you have a reliable source either way works fine.

That's what I do, I have a Russian friend who buys me games. :3

Pretty much this, I'm not really into TF2 key trading (well, no trading at all) but if you let people know these secrets prices would fluctuate, meaning losses on your side.

Yeah, I usually get about 10 keys at a time when I can get them for $1.40 or less and sell them back on the market. Don't want to tie too much in there because you can't use it anywhere else.

If said Russian trader trade in TF2 keys, you can get even more than 50% discount. I got "The Cave" pre-order for $6.95 that way.