Touristy things to do in that area which are very fun are the Durango-Silverton Railroad, which offer the most amazing views of the Animas River you'll find anywhere short of actually paddling it. Plus it is the train used in just about every old western you've ever seen.
The Diamond Circle Theatre's melodrama in Durango.
The Bar-D chuckwagon, an outdoor chuckwagon dinner with fantastic food followed by a western music show.
Swimming at the Hot Springs in Ouray.
The fly fishing in North Henson Creek between Lake City and the ghost town of Capital City is fantastic.
Or lake fishing on Lake San Cristobal (the largest naturally formed lake in CO) just outside of Lake City.
This entire area is the San Juan range and is the most rugged range in the Rockies. It also contains more 14er's than any other range in CO.
Having said all that, the Buena Vista area is also great but may not offer as much to do if you're not there to paddle.
Going to Colorado Springs is not really going to see the real mountains. They've got some great things to see but it's nothing like going deep into the interior of the mountains like you'll find in the San Juans.
And yes, I'm very prejudiced.
