re: GC
Those folks have such a liberal return policy that they've come to be known as a "free" rental outlet. People "buy" stuff, use it for just short of 30 days, then return it for a full refund. That would be fine if they'd absorb the cost of sending the gear back to the manufacturer to be reconditioned, where it could be sold as such at a reduced price. But, they're also pretty good at just taping up the box and reselling it as new. As a result, you have to watch what they give you pretty close, lest you accept somebody else's cast-off that may or may not have less-than-obvious flaws or at best is slightly consumed.