If I can ask a couple dumb questions:

-- what are the Behringer units clones of? Moog, ARP, others?
-- are the Behringer units good enough quality to merit purchase?

While I follow a lot of music tech, I've basically ignored the Behringer stuff because my sales guy at a US retailer you'd know has said the Behringer hardware has quality issues and he won't sell it to me (given my normal preferences for enduring quality). Is this off base? Is the Behringer Eurorack stuff solid or even great?

Yes it would be a lot of fun to have an "impossible in the olden days meeting of classics" rack like Lugia's above. Sigh, more $s...