Yeah - that has possibilities. To be honest, I have no plans to do any extensive touring - a "sports touring" is probably what I'm in the market for, as I'll probably ride it without any significant load 90% of the time, and have the option of doing some short local out-and-back tours. If I start to do more touring, then I'll be looking at another N+1 to accommodate that, but for now I'm just looking to bring some variety to my riding - slightly larger tires (28-32), a bit more rugged, a vintage profile - and while the frame I seek must be suitable for derailleurs, I'm toying with the idea of initially putting a single cog on my rear wheel and running single-speed for a time, or maybe even building an extra rear wheel with a flip-flop hub, though I'm not sure that I'm that ambitious!