I have had my Surface Pro 3 for 4 days. I recently sold my 11inch macbook air base configuration 2014 model. I was growing tired of the mediocre screen but loved every single other aspect of the MBA. So I got a i5/128 SP3 and really love the hardware as the screen is amazing and small footprint in the size. Great battery as well. Problem is the typepad cover is absolutely abysmal and I have scaling issues in the programs I use the most (OOTP). I've never owned a rMBP and don't want to go back to the MBA. Is the weight that big of a difference and I am assuming the rMBP will be more powerful than both devices so its an actual uptick in performance and I will only end up paying about $100 extra after I return the SP3. My biggest concern is portability as I am on the go nonstop and need to carry it all day from meeting to meeting as well as battery life. Should I go to to the macbook non pro or is that too big of a downgrade performance wise? Any input on anyone coming from a SP3 or MBA will be greatly appreciated as I am looking to return soon as Best Buy only has a 15 day return policy. Thanks in advance.