I do not think that European and Australian games should be grouped together even if they are both PAL. Like on the Nintendo 64 there are physical differences for egsample in Europe there is a black border around the front artwork, but in Australia there is a red stripe on the left of the front artwork. Some games also cost much more in Australia and it messes with the price a lot.

Add some sort of "admin look at this game's entire sale history" button, example, mortal kombat on ps3 is filled with controllers and final fantasy 1 on psp is filled with every version of FF but the one its supposed to (i.e dissidia, crisis core, IV)

Having the possibility to change the region of your games without having to add them again, in cases where you made a mistake, or if the game in question was not yet integrated in the correct region at the time of adding

Show me a list of items still missing from a particular collection.

How do we close are account is there a option to close my account and take it down from pricecharting. 

I do such deals frequently,and some cant really be easily divided per item (a purchase of a system with games and accessories for x price for example),so putting the price for the whole haul makes far more sense :).

as for how to do that, you could have the "cost" column be widened a bit and, next to the amount paid figure, add a clickable "+ X more Items" that leads you to a page with all the items bought for that price.

so if i bought, for example, a system and 4 games and 2 extra controllers from someone for 50$, the price you see on any of them will be 50$ and right next to it would be "+ 6 more items" that you can click to see everything that you bought for this 50$.

Cost is currently not in the exported collection csv file. Please add.  Thank you!