My first was a carvewright, you may be going down the right road to take a long look, after 6 weeks I saw its limitations at first it was size capacity for me, it worked the collet was junk but I believe that has been long fixed and the newer ones will do pretty much as expected, Fun Machine. just not long term.
you may have to look at full cnc, whether it is a kit or a better stand alone like several shown here on the forum. the next step up after that is gonna run 5-10 k (bearings and hardware make this Price Point) basically there is no apples to apples for the CW, it is very proprietary to the machine software, upgrades parts support, has a really good forum for the owners though. look at the camaster stinger, xzero, shopbot, for Long term use with mostly open source hardware, then there is a plethoria of smaller kit machines I know little about !
James McGrew CAMaster 508 ATC
www.mcgrewwoodwork.com http://dropc.am/p/EJaKyl