The reason why I don't want the 15 inch Macbook Pro is because I'm taking graphic design. Ill be heavily using Adobe Photoshop CS6 Extended, Dreamweaver, and Adobe Flash. I draw, paint, sketch, and edit images a lot in photoshop and I've heard having a large screen is better for people who do graphic design. On top of that, I am on a budget so I won't be able to buy a Thunderbolt Display. Unless working on the 15" screen isn't so bad without the thunderbolt display like others say, I may just consider the 15" MBP but as of right now, I have my eyes set on the 21.5" Apple iMac.
Thunderbolt, Schmunderbolt. Who cares what the cable looks like that you connect it with? There are lots of perfectly good looking large displays available for a whole heckuva lot less that a Thunderbolt display.