BBTS price is just an estimate isn't it? They don't know how much it's gonna cost so theyre pricing it similar to the last MP (MP11). I assume that that price will change as it gets closer to the release date and they get more info from TT. I highly doubt it will be priced at $159. Either way, my decision on whether to buy this or not will be based on a hasbro/TRU release locally and that price. I'm through paying twice as much for Takara releases.
Keep calm until we have facts. Then you can panic.