"Inspection" is the key IMHO. If he'd said "3 day trial", maybe there'd be a case. But "inspection", as noted above, implies comparison to a standard (in this case, the ad's description), rather than "do you like it or not".

When a seller has to take a gun off the market for a week (potentially passing up other selling opportunities) and goes through the hassles of packing and shipping, he doesn't expect to see the gun back unless there was a hidden flaw in it. The buyer has a responsibility to know what he's looking for, and not "discovering" that he doesn't want what he's agreed to buy.

I'm with Jim Legg on this one.

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