You usually do get yelled at, then you get a tirade of arrogance from self-proclaimed "professionals" who "know what they're talking about"
Ever since the switch to Intel, they've offer one, token, mid-range desktop system and that was the 2006 build-to-order 2.0Ghz Mac Pro. By today's standards, any i7 based Mac Mini would destroy it on CPU power and add a single 6Gb/s SSD, it would destroy it on I/O too unless someone was prepared to sink serious money into such an old system for PCIe SATA 6Gb/s cards.
You'd have no problem doing that at all,
http://www.youtube.com/watch?v=5ka--dw6P-U
This is what gets me. Apple offer this great, affordable, low powered, entry level system that basically offers over 80% of the CPU power of the entry level Mac Pro for a 3rd of the price. Yet people obsess over specs that mean nothing to audio work, like GPU power (or PCIe lanes, let's not forget them because they're SO important to running DAW software), but the fact remains, at this point the entire Mac range now relies on external storage solutions. Not one Mac can be upgraded internally with additional drives apart from the Mac Mini and almost all of them either use PCIe Flash or SATA 6Gb/s SSDs as a BTO option.
Geekbench scores put the new i7s in the Retina Macbook Pro approximately on a level where a 2Ghz 2013 Retina i7 = a 2.3Ghz 2012 Mac Mini i7, the 2.6Ghz BTO Retina Macbook Pro has insignificantly less CPU power than the entry level 2013 Mac Pro and when it comes down to it, more and more DAW software is taking advantage of additional systems as processing nodes for even more power.
This leaves the option of buying a Quad i7 Mac Mini + a Retina Macbook Pro for the price of just the one Quad 2013 Mac Pro and that would offer the best of both worlds. Portability and massive CPU power because once you combine the 2 systems via ethernet, you'd match the 8 core Mac Pro for Logic X plug-ins (or other DAWs with remote processing abilities).