This is a tough question that I've been wrestling with for months. I ordered an R1T, but have gone back and forth between the R1T and the R1S. I don't do much offroading, so for me the major advantages break down like this:
R1S:
- Can have a comfortable, climate-controlled place to sleep if needed (even more convenient with interior electrical outlets and self leveling rumored to be coming)
- Secured storage area
- Shorter, so fits garage better and may be a more convenient daily driver
R1T:
- Easily transport bikes with gate cover
- Bed offers versatility to carry just about anything
I started with an R1T, but honestly don't need a truck most of the time and really like the advantages of the R1S (you could throw an air mattress, mini-fridge and a portable shower in it and live out of that thing on a cross-country road trip if you wanted). So I switched to an R1S, but then I thought about what I would use most often. For example, I like the idea of being able to travel/sleep in an R1S, but I doubt I'd do it very often, if ever. On the other hand, I haul my bikes a couple miles from my house to the trailhead very frequently and the convenience of throwing the bike in the bed of the R1T without having to deal with bike racks is something I'd appreciate every week. Given that analysis, I switched back to the R1T. However, I may go back to the R1S because it will fit in my garage much more easily. So there you go -- I'm still on the fence and trying to figure it out.