Im glad you now have the PR you want, but is it really needed?? unless you are selling adverts on your site i would say no. If your site is getting well indexed and you are ranking well for your keywords i would not be interested in PR, sounds like you were getting obsessed by the little green bar.
The only reason I want PR for is for other PR horny webmasters that only look at the PR when doing link exchanges... I hate it, but as long as there are many webmasters only looking at PR it's a good thing to have PR. When I do link exchanges I only want related and indexed pages, I don't care about PR