These ads are getting more and more lame. As a fulltime programmer and xp and vista user - I never felt the need to use macs but for their unix base and cool design. Considered buying one recently but settled for a vista pc with much better configuration at half the price. It has been running great for me with not a single issue in past 6 months. For any need of unix system, I run ubuntu or freebsd vmware appliances on my vista.
If apple cannot convince a frugal programmer like me who would love to own a mac - I do not know how even these ads can help them much in the general pc market. I think they will remain limited only to folks who really appreciate their commitment to design and would pay so much extra just for that.