I saw a rotary cutting machine for the first time, today, at Joann's (I know, I live under a rock, apparently). If you own one, do you think it's a good investment? Is it hard to use? I'm terrible about cutting strips out of 45" wide fabrics, so I think this might be a good investment for me. But, if these machines are more of a pain-in-the-rear-end than they're worth, I'd just as soon not purchase one. They're not that cheap either (at $99 each). I don't know. Thoughts? Comments you'd like to share?