Easy to find 3.66 ref, they're everywhere. Though this might need a bit more value. Not 4 ref, but say, 3.33 or 3.66?

Agreed, the price is going up but they're pretty common.

Why would the price be going up if more are entering the game? I can see this sticking around 3 - 3.66 ref

I'd say this is too high, I haven't had luck selling mine for just 3.