Is the macpro worth the cost? I want to keep 300+ browser tabs opens, 6+ chrome user sessions, and many other programs running. My PC usually gets sluggish after a day of this. I don't do graphics design or gaming, but rather need to keep a lot of tabs and sessions open on chrome and to a lesser extent on Firefox.
in the end I went with a desktop computer (if you have the space and you don't mind losing portability - I also have a Dell XPS in a pretty good shape for when I need it). It does waaay better when it comes to multitasking, never gets sluggish, much easier to upgrade, no throttiling/overheating problems, cheaper.