I want to display templates I have made on my site, using newly aquired skills, but does this cheapen what we do as web designers? I don't do many sites but I want the templates to act as a starter for what I can do.
I'm not 100% sure of what your asking, but it's pretty common to have a portfolio site with screenshots of your work, frequently with links to the actual site. It's a little less common to provide html templates, unless you're intentionally providing themes for a commonly used back-end tool like drupal or wordpress, in which case, there are a bunch of sites oriented toward that. (I'm on a slow connection, or I'd look some of them up.)
Or, if you're asking about having a starter template for yourself to make the initial build process easier, I'd say that's a good idea, since many sites have a commons structure. It partially depends on how you're building your sites, but YUI has a framework, there's 960grid, blueprint, etc.. Here's one roundup of some css frameworks.
If they're much better, replace them. Or have an archives section, or just have it go back into the past. My portfolio only has about a third of the work I've done on it.
Your portfolio is only as strong as your weakest piece so be ruthless when choosing what to display.
If it's your work, and you don't have contractual obligations which prevent it, (edit: and you like it) put it on your portfolio....
Thanks for the response, I re-read my question and it was a bit ambiguous. I have a small portfolio of work I have done displayed on my site, but I have developed new web design skills since making most of these sites and would like to display them somewhere. I guess my question is: would you display this new body of work, on your own site as templates or somewhere else?