Tom - Check out dvdpricesearch.com. It shows prices (including tax and shipping) from lots of on-line stores. In the case of "The Ultimate Toybox", it shows that DVDSoon.com has it listed for $39.37 plus shipping ($42.07 to NY). I bought my copy from DVDSoon.com, and was very pleased with their service.
You might try your local Borders store. About a year ago I picked one up there for $24.99!! It was the Ultimate Toy Box set. My feeling is that someone mistakenly priced it the same as the 2 disc set next to it, but it rang up $24.99.