To be honest the answer you're most likely to get is that location will almost always determine price. I had to pay $20 each for my sens, and I got them at ~1.5", and $50 for my 5" endli. Ultimately it depends how badly you want the polys, and if you can get a better deal online. Personally I would get a couple, but I don't have any money to spare and don't live somewhere I could even find palmas
Alright, I think I may have the one closest to me order some cuz he'll get me good prices and he can get almost anything. But thanks for the info, it's kinda like me being able to get a 7" ornate for $40, lol (got the 4" instead)