M3 Ultra w/512 GB was released 1 year ago for $9500. I bought one (with a friend's Apple Employee Discount) and originally had a bit of buyer's remorse, because performance was less than some of the Cloud Providers - but recent releases of the quantized GLM 5.2 models are actually pretty speedy and are probably as good or better than any online model I had a year ago - and the discontinuation of the M3 512 has erased that remorse finally.