Originally posted by: GagHalfrunt
Exercise equipment is always available cheap as people buy machines and then stop using them after a week.
So true. Only breadmakers rival exercise machines in the number that end up at the curb in near perfect condition.
But that's not the real question here. While we've established your wife will be overpaying, the core of your question is about the social dynamic here.
The answer depends heavily on the relationship between you and your wife. Will she be paying with "her own money"? I know this can be an artificial construct in two income families, but if she is used to more independence of purchasing action, then you should probably stay out of it besides letting your "independent valuation" of the item be known.
If the understanding between you two is that purchases of even this amount are always made in consultation, then you have more leeway.
THEN it depends more heavily on other aspects of your relationship with your wife. Will she eternally resent your "interference"? If so, then no amount of savings will compensate for that. Just eat the 'loss' and stfu.
If she's more willing to defer to your awesome ferengi knowledge
without bearing subsequent resentment towards you, which you can be sure you would pay for in spades down the line, then YOU can play bad cop here. She can tell her friend that while SHE would gladly pay lebenty million for that sweat smeared piece of used crapola, her mean 'ol husband will not.
If she's cool with that scenario, you're good to go. If not, just ask yourself: "Given the opportunity to purchase X amount of marital happiness for $40, wouldn't you consider that a bargain?''
Of course you would!