Paul,
IMHO, 10 years from now the 2012 Bigfoot's value wouldn't be much different than any unit you could order at present "with the exception of a unit that has a slide MAYBE". With that said, the holdover 12 Bigfoot, a new pontoon & not having to buy a new truck...........well, I'd be hard pressed to go any other route than the one you have chosen!
As for me regarding the Bigfoot vs a Lance or Artic Fox that has a slide....... well I guess I'm just going to have to take a trip west & look them over in person "there are virtually no TC dealers in the Midwest". I do like the calm shell design of the Bigfoot, But the extra room of a Lance or A Fox with a slide adds another twist in the equation. Like others have mentioned, I do believe that moving parts & pieces are weak points or possible problem area's, but without looking at them in person, I just can't make a informed decision. I also have to see how user friendly the interior of a slide unit is when the slides aren't deployed too.
Decisions, Decisions!
Well congratulations with your purchase, Hopefully it will serve you & your family well for many many years.
Bruce