Well Chrysler certainly didn't make many more SRTs than they did Superbirds (1920) or Charger Daytonas (503). But unlike the Birds and the Daytonas, most SRT6's sold much quicker.
Still, down the road their low numbers, and outstanding performance will most certainly account for them bringing "collector" type money at many future auctions. I doubt if I'll be around to see it, but many on this forum probably will.
As for keeping them perfectly stock, and unmolested, well anything can be restored, so I'd say don't worry about it.
Just don't crash them, but you can still enjoy them.

I think what Freakinfast was getting at was SRT6 owners need to ban together much like Shelby owners did back in the late 80's, and simply not sell their cars for less than what SRT owners (as a group) agree upon as sufficent money.
Hey it worked for them. Look at what Shelbys bring now.
Now I'm not comparing the SRT6 to any Shelby, (we all know SRTs are much better) but unfortunately we don't have some old "snake oil" salesman that once drove at LeMans and later on built a few fancy Stangs, and a few hopped up AC Bristols signing Crossfire glove compartments.