Sure, it's still cheap. A few years ago I wouldn't have, because Apps just wasn't (weren't?) all that polished. Now they are much better. Also, the new "pay" Apps will have actual 24/7 customer service, which is a nice upgrade from 0/0 customer service. Plus, what is the charge now? $5 per user per month or something close. If your business can't swing that, things are not going well.
Answer
Sure, it's still cheap. A few years ago I wouldn't have, because Apps just wasn't (weren't?) all that polished. Now they are much better. Also, the new "pay" Apps will have actual 24/7 customer service, which is a nice upgrade from 0/0 customer service. Plus, what is the charge now? $5 per user per month or something close. If your business can't swing that, things are not going well.