Hello. I was considering buying a MacBook Pro over a white MacBook until I came to my senses and realized that the entry level white MacBook has a larger hard drive and the same specs elsewhere. Also, I'm very glad that the palm rests are glossy;Apple finally found a fix for the discoloration issues. My only concern comes from the rubberized bottom: Is the rubber bottom sufficient to dissipate heat? Does the whole rubber bottom touch the table surface, or are there 4 contact points? And, does the rubber bottom discolor very easily(if yes, can it be cleaned)? Thank you in advance for all of your help. I hope you've a wonderful day.