For years I've had a retired G3 B/W in the attic - then stumbled over a pair of Digidesign DSP cards for 100 bucks... too cheapo to pass. Soon a Digidesign 888 IO/20 with cable was added for another 100 plus one such 'abandoned' PT 5.1.3 software.
In fact: original value probably in the $25k range
My main DAW is SawStudio under Windoze XP (few to no Midi) which also features a fairly extensive Creamware Scope DSP system.
For some specific plugins there's a dedicated Win-7 system with an Audient ID22 interface.
(just to illustrate my sonic background which spans native processing and 2 different DSP environments)
The soundquality of PT TDM and of some (not all) plugins really surprised me and I prefer it over most native Intel versions.
Originally the TDM rig was intended only as an external fx processor to add a different color, but it turned out audio editing was rather close to SawStudio so I consider it a full DAW now.
Most appreciated feature is the (named) region management/handling.