Yes, speed tests vary widely, I am past that

Yes, I think SL is valuable but it is expensive for many and compared to my cellular options it's significant and for me typically not needed so it's a backup option for me still. I'm fortunate to the have the Mobley still going for unlimited AT&T at $23/mo, and the Verizon pre-paid unlimited at $65/mo and I hold on to the 100 GB AT&T for 5G play only, I think that's $55/mo. I think cell plans will have to rethink the competition as SL adoption grows. It still has the problem of obstructions just like with our SAT TV days but with a long cord that can often be overcome unlike a fixed dish on the roof, oh wait, never mind
Yes, I got mine, haven't touched it yet and won't until the first billing hits 30 days after shipping, then I'll activate/test it and suspend it as my travels are and will remain minimal for the unforeseen future. But I wanted to nab it while on sale as my Gen2 is damaged, but works. I'd love to pick up a mini someday if that goes on sale for the plane, but we'll see, and I have yet to airplane camp so that's TBD too.
I'll likely store my Gen3 in the shell it came in, but have discarded the box. I did get the carry bag just in case I want to use that, for later when I hit the road again I'll figure that out.