I've considered the Ebay Red Pocket option, but quite frankly I get very good coverage and speeds here in Portland, OR on T-Mobile. I realize it's only $5 a month, but when I had the Xfi Mobile plan I only made a few calls a month and had two lines for less than $4 a month total. I was pretty suspicious of the low rate, but I ported in a number for a $100 gift card, so I'm still about $80 up on the whole deal. The port in number came from a free sim on a $3 a month T-Mobile prepaid plan, so that was pretty easy to part with. I might get the Red Pocket service if I ever take any extended road trips where T-Mobile is likely to be spotty, but who knows, maybe 5G will be in place by then?

My current project is trying to get the most out of a 3 UK 12Gb travel sim from Amazon. It really has some interesting possibilities. Especially with the iOS 13 simulated WiFi service.