I haven't done research lately but Vonage is probably priced higher than other good providers.
Vonage is currently rated 82 out of 100 at the site linked in my first post. That's a long, long way from 1st place. The current top rated provider is still in beta so prices are 50% lower than what their final pricing is estimated to be. There are a lot of things to consider when moving to VoIP. Do you need 911 service? Some providers don't even offer it and some charge extra for it. Do you want to keep your existing phone number (if possible)? Do you want to buy or rent the equipment for VoIP? That's just a few things. I'm not an expert by any means. So far I've only used a couple internet solutions. Right now I use the free Earth Caller service to make long distance calls for free. A full blown VoIP service would be nice so I could walk around with a cordless phone though.
Yeah, it is a long way from 1st. I'm currently browsing thru that list, and my brain is starting to hurt.

My main reason for going with Vonage is that it has been around a while, more people are using it..and for me that means (possibly) less bugs, better quality. I know this isn't always the case. Vonage does have 911 service, and I get to keep my phone number. But, we won't jump till we've had a good look at some of these other providers.
Either way..I'm looking forward to cutting my phone bill by 50+%.