I hate Buying something and then finding it cheaper somewhere else.  Its worse when I'm shopping online because there's an urge to check to make sure you got the best deal.  I can remember buying something and finding it somewhere else for a few pounds cheaper.  I cursed myself, but then thought that I'd just wasted ages searching.  I then wondered if it was best to compare prices for a while, but then just go for whichever one you find cheapest.

Everything is relative though, including the prices of stuff.  If you really want something then you'll probably pay more for it.  In my case, I'll really want it, pay lots for it, and then not use it as much as I thought I would.  I recently bought a 360 degree Camera.  It is brilliant, but it hasn't been turned on since I came back from holiday last week.  Even the pictures I took with it have only a novelty value.  The pictures capture everything, exactly like a Google StreetView image, but its quite often that you don't care what's above, below or behind the camera.  Sometimes I see 360 pictures and I have to look around in them to find what it is I'm actually supposed to be looking at.

Its a technology that will improve though, and people will find a use for it; probably involving nakedness.