^^ Not so sure about some of those statements...

Dual suspension and 29ers were not developed from the "downhill racing folks" and is good just about anywhere. XC Racers are switching to (and winning on) dual suspension rigs and/or 29ers (or both). Dual Suspension designs help keep the tires on the ground for improved traction. 29ers are supposed to roll better over obstacles and maintain momentum better.

I was in a similar scenario a few years ago. I had an older Bontrager, hardtail, and was getting back into MTB riding. Decided to dive into Full Suspension and have never regretted it. Makes trails more fun in some cases, and for long rides made them great as I wasn't getting beat up as much (in my 40's now). Making the move to a 29er this year, but not to replace my existing rides. I say go for the Camber 29er. Compared to your older Trek, it'll be a different universe. Maybe build up your Trek into an SS and really challenge yourself for a change of pace.