sero premium vs boost mobile cdma

[EyeB]

anyone else thinking of dropping sprint sero for boost? Or already have?

I'm thinking that while I'll be paying more for the first 18 months, after that boost will be cheaper. And I can upgrade to whatever phone I want, I'd have to buy it outright/second hand and activate it myself but that's not a problem.

Since Sero Premium doesn't have 4g at $40, I wouldn't be missing 4g on boost anyhow. Plus 4g isnt out in my area.

So is there any benefits/or not to switching? I can see myself jumping at the idea of using new windows 7 phones or evos at $35/month but I kind of want some more opinions on if this is a good move