Yeah, even though watching the Rave Master dub can be fun, due to seeing how weird it is, I would have greatly prefer a series set for Monster Rancher or any of the Digimon series. A Digimon series set, even dub-only, would be totally awesome for me.
I'm actually surprised that they're releasing the series on DVD. It was never that successful and the series aired the last chuck of episodes on Cartoon Network at a 6:30AM slot. Though, the picture there does look pretty cool for box art and the price is really good, especially when that's about forty dollars for a series with over fifty episodes. Even so, I'll probably buy the Rave Master manga over this box set.