I'm not so sure that the bike in question from Mofoco1's question is even a Tourist. It could very well be something else such as a simple Sports, and he is just throwing the term around not knowing any better as he seems to believe the bike has a "2-speed AW hub."
If it is indeed a 70's model, the actual designation of which roadster model this bike is is pretty much moot anyhow. With bike shops swapping parts around before and after a final sale and upgrading/downgrading certain things it is just a matter of opinion what model the bike was at the point of sale due to the fact that no records were kept by Raleigh with regards to serial numbers and years, much less models.
The bike in question could very well be valued anywhere between $30-300 depending on overall condition, paint, color, geographic location (some tweedy areas are HOT right now), accessories, hubs, saddle type and condition, installed lighting and brackets, chainguard, riding season, and how recently it was tuned/restored -and by whom.