Spit - it's much less pricey than buying Anton's complete Vicky's Changing Ponytail set (unless you're a Platiunum Club member - which didn't exist when I bought that hair G). And I love Anton's hair.
I think as a functional hair, this is a decent price - it appears to utilize geo-swapping, which is always cool. And they didn't say that you had to pay for the expansion pak - you never know, the expansion pack may be a free add-on/update to the pak - think positively. ;)