Grab a SS. I play DMD's on site, I like them a lot, and find that after a couple of games they don't really have more shots than SS's, maybe deeper rules but shot count is similar, and SS's have shorter ball times so youv'e got to be on your toes and really play the things to beat them. SS's have better art and more character IMO, and I say SS 'arcade' sounds are better than DMD too (my opinion). Get one for the right price it will be easy to pass on if ya don't like it, but, if you get the SS bug watch out.
