The sad reality is that many stores are that way, they would rather hold out for that extra few bucks then sell an item for a few bucks less and make a customer feel appreciated and buy from them in the future.
I have a store near me that the people that work there are so arrogant when I approach them about the possibility of selling them frags or for trade. They told me "we have a guy here that does that and we don't want tiny frags". He didn't even bother to inquire what I had and sizing, which is fine but the way he came off is that they are pros and I'm a nobody. The corals that I was looking at was a dendro that he had, they wanted 150 for 2 1/2 polyps and when I say 2 1/2 the half was because his guy that already does that doesn't know that you should use a cut of bit to cut heads cleanly so you don't lose heads, they told me they used a chisel, and smashed the crap out of the coral. He wouldn't lower the price ( I would bet that that head didn't make it and I wouldn't be surprised if all 3 heads died.) sorry just not all that interested in taking a chance on $150 butchered frag. Sorry for the vent but man I can't stand some of these rip off stores and their attitudes.
I feel for you can't believe they upped the price on you like that.