I actually turned off the Keynote when it was announced with the prices, insanity. Now, I'm giving it some thought. If you factor 'JUST' a lifespan between Mac Pro models, that's 6 years, or about 2000 days. So you're looking at a machine that is ~$3/day. Also, factor in the resell ability for that $6,000 Pro. "Pro" Precision machines from Dell can range from $250,000+ on their configuration page. I'm not sure what's a good value here. Even if you factor the components costing $3,500 on a PC build, is it worth the extra for a Mac Pro that has a high resell value, OSX, and "Pro" build quality? I already have a 32" 4K, so it's tempting just to get the Tower.