For me I shop for the best deal. Price matters always. I am willing to sacrifice a few luxuries for a much better deal. I look for function always and not luxury ever. Never about "cheapness".
For instance, I don't need a granite countertop in my coach, just a regular good quality one is fine. I don't need tiles, but standard flooring that is good is fine.
That's the way I decide on things. I take everything into consideration, and figure the best deal.
For others the granite may matter, so they'd take that into consideration.
It is a very hard, big, and expensive decision. Sometimes it helps to write everything down in a T chart (or multiple T chart) with lots of columns. Cross out and put check marks (or pluses and minuses) next to everything you like, don't care about, or dislike.
Sometimes hard decisions are easy to make if you lay it out on paper like that.