Quoted from o-din:Of course you would return it. The question was if the scratch was on the back. Say where the wires and plugs all are. Where you wouldn't normally see it.
Someone would have to be mighty anal to box it back up, take it back and hope the next one's better. What would probably happen is the new one would have a defect in a much more obvious place. But some people go thru life chasing their tails like that.
The reason the tv analogy does not hold up, is you can take a tv back to the place of purchase and it can be 100% blemish free. It doesn't even have to have any scratch at all. You can claim you don't like the picture and actually have buyer's remorse. Watch the tv for a week and turn it back in for a refund. Some places have restocking fees, some places like Costco don't. Some give a store credit 1 to 1. Read the online reviews and see how common this is. Audio/videophiles are anal, and probably take their hobby to a whole new level of being picky compared to pinball collectors.
Try putting 200 plays on a machine then going back to a distributor and asking for a refund because you don't care for the flow.
Just pointing out the analogy is flawed as you don't need any reason, valid or not, to return a tv.
Proving my point, I see more and more comparisons to home furnishings, like tvs and refrigerators versus commercial equipment like air hockey tables, kiosks, or vending machines. As more machines go into the homes, for better or worse, you will see more threads like this.