You should have 30 days to return anything for a full refund. There shouldn’t even need to be a discussion. Nevertheless…
If I buy a Fizik Arione from performancebike.com, I can return it for any reason and get a full refund. If I buy it from my LBS, and use it, then I can’t return it? Color me confused. I can buy clothes at Filene’s, wear them, and then return them, but I can’t use a chainring and return it? Neither is saleable once it shows wear, and the clothing is more likely to show wear after one use than most bike parts, so what’s the difference?
In all my years as a sales guy, I have found that it is just good business practice to have a liberal return policy. It keeps your customers happy. Will people take advantage of it? Sure. But they are in the minority. In one somewhat messy situation, I gave a refund on a two year old receiver because the customer was being such a, well, dick. And he was wrong. The equipment worked fine, he just couldn’t wire his speakers correctly and kept tripping the amp’s overload circuit. But it was not worth the hassle of dealing with another knucklehead who would just take up my time, and my district manager’s time, until he got what he wanted. Which turned out to be some junk that wasn’t half as good as what he returned, but cost the same. (The fact that I recall this incident 7 years later is good evidence of the unnecesssary stress it inflicted upon me.)
MA has laws that state that you must offer a minimum 7 day return/refund policy(although 30 days is standard), but a lot of scummy retailers(not specifically bike shops) weasel their way around it by listing items as sale, special order, or clearance merchandise, in which case it can be exempted from the law.
The bike shop guys might tell a different story, but in electronics, and most other retail, you can send your returns/damaged goods back to the manufacturer/distributor for credit, so if a customer returns something, your only cost is the time it takes to process the return. Shipping damaged/returned goods back to your supplier is (more or less) a standard cost of doing business.
File this under “another reason I shop online.”