They have been buying used games here for a long time as well, but never older games. Up until now they haven't accepted anything older than the 360, so seeing that poster weirded me out.
The prices they are willing to pay for some of the games just seem off, if they are accepting them only to resell them later. I mean, 1100DKK for a Mega Man X2. Whoever buys that is looking at paying close to double that amount, if their pricing on used stuff stays the same. I'm just not seeing the profitability in this move, considering their general customer base.