Not sure how large the Canadian customer base is on this site.  If it is material, I have a couple suggestions:

1. Listing approximate prices to ship from different regions of US to different regions of Canada.  

2. Laying it out so you could see approximate prices to ship different kinds of games... NES cart, NES CIB, etc (maybe just approximate weights would suffice)

I shipped a package to Canada and while this site was very helpful with the customs form and how to choose the most cost effective method depending on what you're shipping, I feel it may be a little outdated (but I could be wrong).  However, the USPS site is not helpful at all.  It says $10 to ship an item but my CIB NES game was almost $19.  I did my best to quote it out ahead and the buyer graciously kicked in more money for shipping but I had to cover more than what I expected shipping to be once I arrived at the post office.  

I have a PAL exclusive Resident Evil 4 Gamecube console and I noticed there wasn't any pal gamecube systems in the PAL gamecube section. Might we be able to add my specific one and the base models?

No need to see games that I already own.

I'd request that further variants of consoles be listed: be they colour variants, and perhaps even box variants. Take, for example, the Nintendo 64. The only variants listed are the Funtastic, regular, Gold, and Pikachu variants; however, this excludes many more, such as the Jusco 30th console, the Daiei Hawks console, just to name a few. Thanks for reading.

-Waffy 

Add a list of all the Japanese Sega Saturn games and track their prices

values of system, games, controllers, etc

I have two games not in the DB.

Adventures of Lolo for Game Boy

Wetrix GB for Game Boy Color

It would be nice to include specific games for alerts instead of waiting for yours to pop up. Being able to put "Mega Man" or "Pokemon" on alert would greatly aid in hunts. 

If this has been suggested before, I apologize. I looked to see if anyone suggested it and I'm either not the best at looking or no one has suggested it.

Add a category type search in collection.  Like if I was in my collection and wanted to play a puzzle game I could click puzzle games and see what games I have.