Many new releases in most of the genres I read are 5.99-7.99 from publishers.
So for me back list title, older stuff being re-released, I like to be in the 2.99-3.99 range. Anything up to 3.99 I buy without thinking to much. I mean buying something I already want. I don't ever buy anything randomly without vetting.
I'll also pay up to 5.99 for a author/series I am already hooked on. Otherwise the 6.99-7.99 I only pay for new releases of handful of super great authors I been waiting on. If I can't find it at the library that is.
One author finally has the back list out, Patricia Veryan. I wanted those for years. MacMillan put them out at 7.99. In end of 2015 I believe. I am still waiting for them to come down in price or to find them at the library. Only one I can find there. If they had been 3.99, I would have already bought a few and read them. I own one, but I don't want to start reading it until the prices come down on the rest of them. Doesn't look like they will. So I keep waiting and asking my libraries one by one to buy them.
I am not paying 7.99 for books published in the 1980's.
I read a lot so price does mean something to me. I still have to eat and reading is pretty much my only hobby. I have a budget. I wish I was independently wealthy and never had to look at price of books every again. To just one click whatever, whenever. But that is not my reality and unless I win the lottery, it never will be.