Microsoft softens the blow, sorta...

Mary Jo Foley in her post

Microsoft to offer Vista ‘Family Pack’ discount for Ultimate users

sites the possibility that if a home user buys a full license of Windows Vista Ultimate (~$399.00 MSLP) that Microsoft will sell two additional licenses at a price somewhere between ~$49.00 and ~$99.00.

399 BLOWS!!!

49-99 seems just about right.