Found out about this on HowardForums (but I lost the link). Apparently one user just buys these SIMs and has a Google Voice number to achieve what we do with $30 starter packs. Anyhow, these SIMs should be good for any OzBargainers wanting to travel to the USA.
SIMPLE Mobile $60 plan, 1st month $23 USD ~ $31 AUD
unlimited data, calls, txt, int'l calls to specific countries, Australian landmines
www.ebay.com.au/itm/112166945178
Details:
http://shop.simplemobile.com/shop/en/simplemobile/$60-plan-with-unlimited-4g-lte**-data-smn40060ild-p
List of callable locations:
https://www.simplemobile.com/wps/wcm/connect/c42c4975-837b-4…
You can have these shipped to your hotel or AirBnB address. Just follow whatever bizarre instructions the eBay seller has for you and their eBay seller magicks will activate the SIM for you. You can also pray to the SIM starter kit gods for free!! I have not personally tried this, but it seems like this is a fairly popular trick on eBay. The prices are pretty stable here, haven't seen them move much really.
If you think this is a bit risky try: TPO or my favourite SE Asia + US/UK roaming SIM StarHub
"calls to specific countries, Australian landmines".
That'd be one bang of a call!