@Stephen:
Well, the speeds are definitely better, but I’ve also had problems with down-time… 3 outages in less than 12 days… I was going to change again, but decided to give it another shot.
Tough call with that many sites, I’d be hesitant too… I assume you’ve tried reaching out to GoDaddy’s sales team? For me, one little site, they had no interest. For the volume you’re talking, they might be more responsive…
Good luck, and if you end up moving somewhere else, would love to hear about that experience…
Cheers,
Atg