Title tags not displaying correctly?

[BobAnderson]

If I have a title tag with 28 words (around 90 letters) with some repetition and Google has decided not to use this in the SERPS is this a bad thing (basically saying the title tag is not liked by Google).

[Gamer07]

That's way too many words for a title tag. As far as I know you should keep it below 70 characters.

[Francisco_Meza]

You need to learn about the SEO Tools available here in SEOmoz. Put every URL you can in here and tweak until you get an A.

http://pro.seomoz.org/tools/on-page-keyword-optimization/new

Edit: Watch this: http://www.seomoz.org/dp/welcome-webinars

[Webmaster_SEO]

To answer your specific question, a lot of times Google displays algo created title tags if it believes that the one supplied by the webmaster is not good enough or does not contain the query term being searched for.

If Google is changing the title tag even when the search term is present in the title you have mentioned on the page then you might consider changing it and making it more meaningful. Having said that, there is no guarantee that Google will pick and display your changed title even if it matches the search term and is grammatically correct and good to read.