I'd echo what's been said. If the download limits are large enough and price low enough then maybe. There are some seemingly very good deals on the market already but when I checkout the 'upgrade' terms and costs to what I have already, then I find i'm not saving anything or not enough to warrant moving away from a service i feel secure with.
Its a tricky market to get in to I would imagine, and if you hope to cope with the support demands with current staff, then I think you'll be in for a shock. You'll probably have to double your staff at first and then expand some in the following months.
Good luck though
