The record store where I bought my copy of The Tree Musketeers years ago had two copies: the US one released by Hollywood Records and the EU one released by A&M Records. I chose the US one, but when I got home I found out that they put in the disc of the EU release.
I guess Intrada don't think Kamen sells. But they will shit out another Richard Band title I'm sure.
Hmmm...well I think Intrada would know whether Kamen sells or not, and sadly the answer may be "not enough" since their monumental expansion of one of his most popular scores (Robin Hood) they recently put on their 30% off sale (ending tomorrow if you want to nab a copy at $21 instead of $30!) -- http://store.intrada.com/s.nl?sc=16&category=67400
In closing I'll leave you some absolutely rapturous orchestral music by Richard Band, thankfully released complete by Intrada (and I'm sure if they reissued it, it would sell out again):
Still my favorite version of The Three Musketeers! By a long shot.
I can only surmise that you have not seen Richard Lester's brilliant 1973 version, justly and universally regarded as the best version ever. By a long shot. ;-)