Generally speaking there are more pre-facelift supra's in the UK than facelift. Facelifts usually cost more as well, compared to it's prefacelift equivalent.
I would argue that the VVTI engine is superior to it's predecessor but when it comes to upgrading them there are a few more "challenges" such as VVTI control and drive by wire. These days most after market ECU's can handle either with ease, but in the past it was definitely harder to tune, less so now.
Having driven both engines, I can say I'm impressed with the low down gains of the VVTI.
Tiptronic is kind of a gimic, easier to just leave it in full auto mode.
Nothing wrong with automatics, just requires a different driving style to a manual when driven hard. Have only seen a handful of supra owners that know how to manipulate the auto box under hard driving.