An interesting byproduct of the upgrade was a dramatic increase in website traffic.
The above graph is a comparison of the dates 8/20-9/12 and 9/20 (upgrade date) to 10/13 (today). You'll see a 61.33% increase in visits, a 76.99% increase in page views and a 9.71% increase in pages viewed per visit. That's AMAZING! I didn't change any of the content, I just displayed it differently. My once hard to find web design articles and blog were brought to the front. I changed the portfolio to be more user friendly and I tweaked the template.
Joomla 1.5 is much cleaner code. It is easier to manage content and menu links. And with the exception of one major security hole (now fixed), it is much more secure than previous incarnations.
My personal recommendation is upgrade, that is the answer!
