Why should I have to deal with caps or no tethering when I can get that on Tmo? Thats the whole point of paying for a service, being able to use it. ST really isnt a service for anyone who buys a phone like the 920 and actually wants to enjoy its features fully.
That's a pretty broad statement. In fact, with Tmobile, you still have caps, even with the so called $70 unlimited. See this from their site where they talk about the plan details:
Network Management: Data traffic of postpaid plans with limited high-speed data allotments greater than 2 GB will be prioritized over other currently offered plans during periods of congestion. Service may be slowed, suspended, terminated or restricted for misuse, abnormal use, interference with our network or ability to provide quality service to other users, or significant roaming.
So unless you have a two year contract w/ Tmobile, you will still have to deal with caps.
Anyway, not trying to convince you otherwise, just saying that Straighttalk might be a viable option for people to try.