Also available at Target.com for $47.19:
https://www.target.com/p/underworld-...32#lnk=sametab
Also available from Bull Moose for $49.97 with free shipping:
http://www.bullmoose.com/p/23518984/...oup-fish-4cd-d
It'll probably be on Best Buy soon too.
After the dubno box set, I pretty much came to the conclusion that for music releases, it's cheaper to buy elsewhere, especially for US people. The shipping costs have become huge. Even buying from Amazon UK is usually better too, because shipping to the US is cheap, and we don't have to pay the VAT, so it lowers the price.
If you can wait a year or so, both of the other box sets were eventually available for $30-40, and this one probably will be too.