[W]Looking for an Indie Royale Evolution Bundle [H] TF2 keys

Might as well give a try (even though everything seems to be almost Gaia related)

I'm thinking 3 keys or so?

A black market key is worth ~$1.30, for reference, which is why buying them in game is a poor investment.

Oh.

Sometimes I just see them in TF2OP at a rate of 1.80$/key (for games).
steam cash.

xD

IDK, they might be $1.80 now. They were $1.30 at one point, and I assume they don't go back up. Maybe they did.

TF2OP is well known for price inflation, and lowballers galore.
Sourceop users commonly sell keys for 1.20 USD to 1.35 USD depending on how much you buy.

However, TF2OP is a good place to estimate prices for games in keys.
Keys in (TF2OP) x (sourceop key rate) will get you a descent price for that game.