I need some insight - hopefully some from people who own or have ridden the Rove.
Right now I have a 2010 Jake the Snake, which I bought new 2 years ago and have been using as a commuter, occasional off-road stuff, some longer rides in less-than-ideal weather (when I keep the caad10 at home!) and have raced in a few cyclocross races. I like the tire clearance, the fact that it can do a lot of things - i can change it from a toury-looking commuter to a mean looking cross bike in just a few minutes. I also love shimano 105.
I feel like I can probably get at least what I paid for the bike (around $750) locally on craigslist, and I can get the Rove through a connection for about $1200 I think.
My concern is that the swap won't be worth it (N+1 is not an option here - I wish). Basically I'd be swapping an aluminum framed, carbon-forked canti-braked bike with 105 for a 3 years newer steel-framed, steel-forked bike with SRAM Apex group, and disc brakes.
Pros: I can mount a front rack and it would probably be better for short tours (which I've never done before - but I did buy a hiker/biker tent and have really wanted to do at least some overnights here and there). I feel like the Rove might be a better choice for doing some riding on local mtb trails (nothing too crazy). The disc brakes (from what I've heard!) are likely to provide better stopping power, especially in the rain. The brakes on the JTS don't have the greatest stopping power. Steel is a smoother ride (?) - I have a steel single speed that I really enjoy. Geometry would a be a little more relaxed.
Cons: 5 pounds of weight, money, my LBS refers to the rove as an over-spec-ed, overly expensive, heavy commuter bike, I think it would be a little harder to race cross with the extra weight. Geometry would be a little more relaxed.
The other possibility is keeping the JTS and buying an entry-level mountain bike for trails, and just hope the JTS will be sufficient for mini-tours.