I'd leave Sniper Elite on there. I know GQD re-printed the PS2 version but they left the Xbox one alone. I rarely see that one anywhere.
How about these:
Galleon
Pro Fishing Challenge
Spikeout
Ultra Bust-A-Move
King Of Fighters 02/03
Splinter Cell Chaos Theory Collectors Edition (I remember people saying this was impossible to find even when it was new)
Good list so far and I pretty much agree with everything on it except Pirates. I literally see that one everywhere (new & used).