Just getting the disclaimer out there: this is totally hypothetical.
I'm sitting here waiting for my lens to arrive, so it got me thinking.
It must've happened to people in the past, but what would you do if you received lens that is better than the one you ordered, but they only charged you for your order (basically a mispackage)?
For example, you order a 70-200 f4L, and get a 70-200f4LIS?
Or an EF-s18-55IS, and you get a 17-55 IS?
50mmf/1.8, get a 50mm f/1.2?
I'm fairly moral, the guilt would probably eat way at me, and I'd like to think that I'd return it...but to be brutally honest, I'd probably consider it at least. At the very least, I'd open it and play with it probably...
Has this happened to anyone? What did you do?
Would it make a difference TO YOU, if it were different stores? i.e. BestBuy vs. B&H, or Amazon vs. some Mom&Pop store? Off an bay seller?
Would the price difference matter? For example, you get something $100 in your favour vs. something thousands of dollars?
'Stealing' is stealing, but people's morals always cover a gradient...