A pic of the RG 170RBK as to compare below on link.
I don't think it's a lower end guitar by the pick-ups, and left handed guitar would fetch a higher price, and someone out there has to love turtles. :D
Most Thrift Stores have mostly junk that's true you just have to be consistant in visiting them to find good stuff especially on 50% off days as for the guitar it was a 30% off day.
But I've gotten some very good speakers, stereo equipment, computer accesories at a very good price, as women sem to go for clothes and furniture and nik-naks and guys mostly think it's all junk mean while I go a few days a week and keep getting some great bargains that I can even turn around and sell on ebay. ;)