I could see that with Dragon Ball as it was a more fun and comedy focused series. But DBZ was all about the fighting... and their passion and action was infectious. I plan to snag some old DVDs to get me back on a regular workout regimen.
They're going through the entire series now and re-working a lot of the Z series to remove the filler episodes and dead space to streamline the seasons. I think the sets go by the name of Dragonball Z Kai, and the first few sets are out on DVD and Blu-Ray. I've been meaning to check them out, but haven't gotten the chance yet. From what I've heard though, it's an improvement over the original series.
I've been watching some of Dragonball z kai and it is a remastering of the series, and great. I think it is a great tool to turn new people onto the series, but sadly they are only remastering the Cell saga. I would totally recommend it