a second hand mac would be my suggestion … I have the 2012 mac mini and I am underwhelmed by the whole experience … the idea of having a little headless machine was attractive but it is substantially slower as an overall experience than I had on a 10yr old now dead iMac albeit that wasn’t running Mavericks … IMHO Apple will cripple everything you buy if you let them, so getting a combo of hardware and OS in a sweet spot with hopes of support on audio soft side would be the thing to aim for - I also needed support for FireWire without being robbed on the dongles roundabout game they play
a mobile device without an easily serviceable battery becomes a consumable so I wouldn’t go for a MBP if I even had the money - I always found the iMac to be the best overall package, best value, good performance, good screen, just a good package … a recent second hand one would be on my radar if I was in the market
all my recent apple devices are surprisingly useless, yet the older ones still sing along, though frozen in time somewhat … go figure ! I can scarcely hide my contempt for their approach to hardware, software, music and standards so don’t take my opinions too seriously … i’d consider a windows machine in the future too, apple stuff is just too pricey for the longevity these days not to mention the constant OS merrygoround … was a fan, not a fan, may have been more of a fan if I could have got an iMac when I had another machine failure