Well, tip for the top is Green Lantern #29-35 from 2008. Seven issues that make up the Secret Origin arc. The first has already been issued as a $1 reprint, the original usually goes from $2-$3 on eBay, the rest can be picked up for $1 or less. Certainly you should be able to get the lot for $10 or less.
So why the possible future interest? Because these are the issues that Ryan Reynolds says makes up his bible for the Green Lantern character in next year’s movie. Written by Geoff Johns and drawn by Ivan Reis, it’s also a focal point for the expansion of the Green Lantern brand in the DC Universe. One could almost say that the new DCU started here. Not quite the The Bronze Age… how about The Johns Age?
Anyway, if you’ve got ten bucks and you get in quick, who knows. If niothing else, you’ll get a decent read out of it.