I'm not particularly price-sensitive (that is, I'm not going to spend any time or energy finding the lowest possible price for something -- I'll just go with the first reasonable price I see). You may differ on this, and that's totally fair.

However, this:

> And after you're accustomed to 1-2 day shipping from Amazon, waiting a couple weeks for an eBay shipment is a non-starter.

Ignores the fact that (at least for the stuff I buy), you can usually get 2 day shipping from eBay sellers. The only time I have to wait more than a few days when ordering on eBay is if what I'm buying is rare enough that I have to buy from an out-of-country supplier -- and those things are rarely or never found on Amazon anyway.