I have also wished that my MBA was available with an integrated cellular radio, but I no longer would probably pay for that option.
We use AT&T family plans. On top of our monthly general fees, we pay the following:
- 3 iPhones - $15 each
- 2 iPads - $10 each
I also used to have a mobile hotspot @$20/month ($50/month prior to family plans). I have since disconnected it, since it simply was not worth the extra $20/month. Instead, I tether... primarily to my iPad.
Last time I checked... AT&T was charging $20/month for laptops that have integrated cellular radios. For some reason, they thought that laptop connectivity is worth 2X iPad connectivity. Since my wife and I each have a MBA that we use while traveling... that would be an extra $40/month for our two MBAs. It is not worth it for me.
We absolutely never use a public hotspot anywhere, because of the ease of sidejacking. The only Wifi networks that our laptops ever attach to are the private one in our house, and the ones at work. If we are not at work or at home, then we use WiFi tethering (primarily to my iPad). Our devices (iPhones and iPads) only ever connect to WiFi at home. All other places are strictly cellular networks.
We spend about 30% of our time traveling. When we get to our hotel room or beach condo... I simply plug in my iPad, and turn on the tethering. Since it is plugged in, it remains 100% charged. I prefer using my iPad over my iPhone because if I leave the condo with my phone... anyone left behind still has connectivity. Another benefit is that if you use a VPN on your iPad, then you get single point VPN for every laptop.
I used to consider if AT&T charged $10/month for laptops (instead of $20), and if Apple sold MBAs with optional cellular radios, then I would consider it. However, using the iPad as my hotspot works so well, I do not think I would bother anymore.
/Jim