Simple. Is price the major factor in your purchase decision?
YES -> buy a PC
NO-> buy a Mac
Apologies to anyone who was expecting more. FYI, six months ago I purchased a MacBookPro, it had been 20 years since I my last Mac.
UPDATE 3/23/2013 - Never looked back from this decision, and have become a 100% Mac household. For startups in NYC, almost all are going with Macs. For developers, a non-brainer.