I assume there will be enough to accomodate mistakes - there are surely not 25 yards of fabric in the whole front of the quilt, and that's what they say they send!
It is a lot... and while the quilt is absolutely gorgeous, it's not really my taste either... but for the amount of fabric, I think it's worth it - and even better spread out over an entire year. I spend more than $20 a month on Starbucks, and if I need to, I'll just cut it out completely!
Besides, including tax, I'd spend about the same amount on fabrics that *might* go together nearly as well at my LQS, and I'd have to bite the bullet on the whole chunk at the once instead of spread out (or it might not be there when I go back later).