[quote name='blazin_it_alwyz']Flip side of the coin.
I have a game that I can sell for a good deal, and someone would willingly pay for it, except I don't have the manual. Basically you have a hypothetical situation where I don't have the manual, and someone out there doesn't care and just wants a good deal on the game (I would definitely still bite on some of these deals, even without the manual).
Basically what it comes down to, is the site owners are going to have to figure out a way to easily integrate something where as people who try to trade games in without manuals won't be turned away, but at the same give people a reason "To" include the manual.
Just to toss an idea out there, Give 3-5% less on the trade-in price for no manual. It encourages people to include it, but f you don't, your still getting 95% of the trade-in value. On the buy side, automatically offer only games with manuals, but program it into your system so that if copies w/manuals are in the system, offer it as an option, for 2-4% less.
The idea is, hide all the complicated stuff behind the scenes, don't penalize people for not having the manual (most of us buyers don't care TOO much about the manual) but encourage people to include the manual anyway for the times when people do care about the manual.[/QUOTE] Speak for yourself, I want my case and manual. But I like the idea, Have an option to check if you have a manual. If not, you get docked a few dollars.