I have some ASP sites one real estate one with over 2000 pages. However it look like a mess from a SEO point of view. It gets decent traffic but I feel it should be doing much better. Some people say its worth trying to SEO an ASP site. What are your opinions?
ASP is your back end technology. SEO has nothing to go with ASP or PHP. Any serious web marketer would tell you that SEO is one of the major factors that helps in the success of your web site, irrespective of what you use on back end.
Why wouldn't you? Whether it's a static website or ASP, PHP, Coldfusion, .NET or whatever, you should SEO.