Sun Microsystems Computer Corp offered the low-end Sparcstation 10 Model 20 in September as a promotioal system because it was supply-bound on the faster versions of the processor, and never intended the 33MHz box to become a permanent member of the product line. But customers tried it, liked it, so the company has bowed to their wisdom and is offering the 41 SPECint92, 44 SPECfp92 uniprocessor SuperSparc machine with 32Mb memory expandable to 512Mb, a 424Mb internal disk and GX graphics at $16,500 with a 19 grayscale monitor; 16 and 19 colour are also available; upgrading it to the Model 41 costs $6,500. All available.