I think the correct answer depends on:
1) What software will you be using? Is is CPU or GPU intensive?
2) How much to the physical enhancements, i.e. glass track pad, chicklet keyboard, etc excite you? How much does having an extra $600 in your pocket excite you. Which of these two makes you more excited?
3) How long to you keep your notebook? Do you keep 'em till they die or do you upgrade every 2-3 years?
Everyone has different needs and standards. I bought the new MBP b/c I like having the latest and greatest, even though I don't like the glossy either. That's just me though. I can see where someone would be thrilled to get a brand new dirt cheap last gen MBP and believe me they are hardly turtles.