Back in 1966, Winchester came out with a special rifle, a "commemorative '66"...and the demand for them exploded through the roof. So, instead of leaving things as they were, they restarted production of that rifle, and ended up making about 160,000 of these so called "collectors" rifles, and then (to top it off) they started cranking out "commemoratives" for everything from various states, to Buffalo Bill, to US presidents, to whatever they could think up....
Net result? These rifles are now regarded as near worthless. What was once highly sought after is now viewed as the starting point of building a custom lever action because the parts are so cheap and easy to get.
FMC has effectively done the same thing. By disbanding SVT and turning the Raptor into just another trim level, and cranking production to the moon, you'll now see dozens of Raptors just sitting on dealer lots. Local to me, at Evergreen Ford in Issaquah, they have at least two dozen of them at any given time, and they are not (what you'd call) "moving real quick". They shuffle them around the lot every few days, but the same trucks seem to sit there week after week, month after month. Especially the Shelby Raptors with their $120,000.00 stickers.
In the future, I think that the only Raptors which will hold any significant value 10-20 years from new will be the Gen 1's. If you want a full on race truck or just want to thrash a rig, the Gen 2 would be a great bet. Has a better shock package, and Ford is clearly willing to flood the market with them, so getting another one probably won't be much of an issue, at least until they stop building gasoline engines in vehicles.