I have noticed these becoming more and more collectible.

I think it would make sense to include them here.I'd include:
Nintendo Power, Nintendo Fun Club News, EGM, Diehard GameFan, GamePro, VG&CE, Electronic Games, Sega Visions, Team Sega Newsletter, Game Informer, Mega Play, SNES Buyer's Guide, Turbo Force, Hardcore Gamer, Retro Gamer, among others..

It would be nice when we look at a list of games to be able to tell if the prices are rising or falling.  How about including the price increase (or percentage increase) next to the current prices?

The console filters are applied to the value and item totals but the include/exclude filters are not. Right now this leaves me with no way to check my total number of games since all the loose manuals and boxes are counted as well.

For those of us that use the Lot Tool Calculator often, it would be nice if we could set a default value for the "Condition" field. For instance, I usually utilize a "CIB" condition in 99% of cases, and so it would be great to set "CIB" as the default value without having to change each and every title from "Loose" to "CIB".

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