I am a mac user and I agree somewhat with what you are saying, but this really doesn't elaborate at all on what he was asking. $ wise a PC is going to give you so much more bang for your buck, you can get one that is so much more powerful for so much cheaper. Now with the new macs you cant even upgrade them without doing it through apple and its fucking expensive. Dont just get a mac if your only desire is to have a fast computer because as I said earlier you can get a way more powerful PC for way less, especially if you are on a budget. Personally i have a refurbed MB from 2010 that i got for Xmas last year and I haven't even been able to consider upgrading, but I do love the mac interface way more compared to windows, but you can just run hacintosh on a PC.
Now if you dont have to worry about money at all, hell yes you should purchase the most upgraded MBP you possibly can, especially with the new screens they have, although spending up to 3grand on a laptop just seems so illogical.
so i guess this was kinda pointless hahaha
(this is advice is coming from a pretty uneducated person computer wise but this is just my two cents)