Oops, Abbe, I know you're a fan and for some reason thought you owned the Classics dvd. Yes, I'd read all that info on her forum as well... amazing! So I don't mind the cost of her products so much now.
Videofit, I don't think it matters much in what order you do the Unpluggeds. Plus they're very well chaptered so you can mix and match exercises from individual shows. I know they are expensive and wish I could magically tell you that you'll love "X" or "Y" but I'd hate to feel responsible for you spending your money and not enjoying the workout! I really like Margaret but I'll be the first to say I don't think she's for everyone. Her programs are not glitzy and although she's professional she's not always that polished and in her newer videos she can come across a bit 'vague' at times, kind of like a sweet person who's thinking her way through something as she speaks, lol. IMO there's kind of a homespun quality to her videos - however, that's a good thing to me as I find her supremely relaxing to work out with. There's no driving techno music and frenetic, fast-paced movements; for me there's no dread at all with her workouts. Her workouts are low-weight/high-rep, and her older workouts are generally more challenging than her newer ones. I'm going to make a sweeping generalization here and say that, on the whole, I think she appeals much more to older people than to younger. I like her very well now that I'm in my mid-40s but I believe I would've found her boring ten or fifteen years ago. Hope this helps you make up your mind.
ETA - Re-reading my post, it seems I've played the devil's advocate but bear in mind I
do really enjoy her workouts.