[jyl]

Straight Talk at $45/mo for the "unlimited" plan (actually 2.5GB/mo data then throttled to low speed for the rest of the month) so $180/mo for my family. That will save about $40/mo. Plus I have to pay $550-650 for each phone (depending on what we get) so over the next year, that's $2,400 or so, and repeat every 2 years.

So not compelling. I think ST and Aio make sense if you don't use a family plan, use cheap phones (Huawei etc), and/or keep your iPhones for 3-4 years (like you're still using a 3G today).