The sweet spot is definitely 12x, unless you want IDE and the 16x Plextor is unmatched in that category. I prefer SCSI so I'll stick with the 12/10/32S. 20/24x writers are a joke because they use "zones" and only write close to or at their max rated speed on the latter areas of the disc. They don't actually sustain 20x or 24x write speeds across the entire disc. I don't see the big deal between 12x and 24x myself, either. I find 12x more than fast enough. I browse a few threads here on AT and a disc is finished. I suppose if I was reproducing tens of discs daily those 2-3 minutes would add up, but...