I'll drop the B word.
The Behringer Neutron is a good starter synth with lots of flexibility.
If you can find one of the first 2000 units, the K2 looks pretty tasty as an MS-20 clone. Lots of patching possibilities in Eurorack.
If you're in Europe you may find it a lot easier to find. Then there's always the Model D mini-moog clone. THREE oscillators but limited on Eurorack patching.
The great thing with all of these choices is that they are far below your budget maximum.