This is a bit late, but why would they charge that much for it? Most are like $49.99 or so. That seems like too much.
The SRP is just the suggested retail price, I hardly ever see them for sale that high, at least on places like Amazon. It's usually a good bit cheaper. (The Season 15 DVDs aren't listed for pre-sale on Amazon yet, that I can find, but for example: the Criminal Minds Season 10 DVDs have a SRP of $55.98, but they're on Amazon pre-order for $39.83.) Still, DVD sets always seem to be too expensive for my wallet...
Aren't the prices usually HIGH when the DVD set is first released? You'd have to wait awhile for the price to go down.
The "suggested" retail price is set high but rarely is anyplace selling them for that. I get mine at Best Buy in the first 2 or 3 days after it's released and I haven't payed over $40 yet.