Buchla synths are weird. That is of course the charm. They are also known for being quite expensive. The LEM systems and h-series modules from Buchla Electronic Music continue to push lower in price, including this self-contained LEM4 system with “Music Easel-style” keyboard.
It contains a Buchla dual complex oscillator, vactrol low-pass filters/gates, and MIDI and CV options. The combination contains what one needs to make distinctive Buchla sounds with the crunchy high-pitched oscillators, and of course the percussing low-pass gates in odd rhythms. At $2499, however, it is still quite pricey for an entry-level unit.
Another way to get started with Buchla modules would be use one of the adapters that allow Eurorack modules to be embedded in an e-Series system.
While billed as “the solution to fit that ‘must have’ Eurorack module in your 200e or LEM system”, it would allow one to combine a Buchla oscillator or gate with an existing Eurorack system. Something that is certainly an intriguing possibility (a delightfully dangerous one).
And for sheer aesthetics, the 252e Polyphonic Rhythm Generator still remains my favorite.