ST Pro has already taken most of the hit on depreciation and settled out as a pretty well regarded/ranked game. Lightly used TWD Pro's are still being sold for close to original purchase price and while some people like the game, overall the ratings are not very good. So, I'd buy the ST and maybe sell or trade it down the road for a TWD. Odds are pretty good that the ST will be worth as least as much as TWD 12-18 months from now. Code updates will probably boost TWD's popularity but can't fully compensate for some of the other complaints.
I've owned a STLE and played TWD LE and Pro a good bit. Personally, I think ST is a better designed game with a great playfield, but expect that TWD will end up having better code because of Lyman.
Greenwood, FL
