In the near future I plan on buying an Apple Cinema Display for use with my 2010 MBP. No matter what I do, I won't be buying new. 27" Cinema Displays go for $850 refurbished. 24" displays are around $500 on eBay/Craigslist. The extra 3" isn't a big deal to me when comparing the two. What I'm most concerned about is PPI. The 27" is ~109 PPI and the 24" is ~94 PPI. Will I be disappointed if I buy the 24" Cinema Display, especially considering that my MBP has a hi-res screen?