The TOPS is a lot heavier than the Warthog, which may be a boon or detriment, depending on your plans. The Tracker will have more power in a swing (a lot more) but be clumsier in other uses, just like any big knife. The Warthog is very solid, and can absolutely handle anything you'll need it to do in the out-of-doors. When people get too wrapped up in the "is this knife good enough" stuff, I always have to remind that for the first few thousands of years, man saw to his cutting needs by employing a sharp rock. And, to them, survival in the outdoors wasn't a hypothetical.
I'll tell you my opinion, which is not universal but isn't unusual either, that TOPS charges an awful lot for thru-hardened, laser-cut, 1095 blades. None of those things means they're not well made, just that it's hard to justify their cost, given their extremely straightforward and non-time-consuming construction and relative inexpense of their materials. For a little more than the TOPS tracker, if you like the design, you can move into customs where differential hardening, different (possibly better for this type of knife) steels, and a WHOLE lot more options in handle material/shape/size, knife size/weight, fit/finish, etc become possible. Plus, TOPS knives tend to come with extremely thick edges and narrow main grinds--the tracker included--so that it's something akin to trying to cut with a splitting wedge. Most of the custom Trackers or WSKs that you see have much higher relief grinds and thinner edges, while still being just as thick at the spine.
Don't get me wrong, TOPS knives are tough as bricks and from what I've heard their quality control is high, but my personal opinion on your question of whether they're worth the money is no, not really--unless their version of the Tracker, above all other available iterations of this design, just stirs your soul. I'd save a little longer, and get talking to Roger Linger, Peter Jensen, or other custom makers who deal in knives of this type and get a higher performing tool.