(Tangential, regarding GL.Net routers: I find it satisfying that these routers run OpenWRT out of the box, and top the "Travel routers" category on Amazon: "Overall Pick" and "Amazon's Choice".)
I run several GL.Net routers in a mesh across two continents, some have Starlink and cellular, some on regular ol' fiber. They are bulletproof, highly recommend.
It's probably because usually normal people don't but routers because they get them included in their internet subscription. So the people buying them have a specific reason to that normal routers don't do
It's a travel router which power users buy to get good connectivity away from home and office. An hotel won't offer you that (and chances are that they'll try to rip you off on their wifi).
Assuming you can find an Ethernet port to supply it, that is. Most hotels don't make them easy to find and use, if they even have them.
More common is that you use the travel router to connect to hotel WiFi and then share out that connection. It's slower than using directly, but it's great for family travel since you can name your travel SSID the same as your home network - all your usual devices will connect automatically, and will use any whole-connection VPN you have set up (most of the gl.inets will do Wireguard, OpenVPN, and Tailscale that I know of straight out of the box, and they will let you into luci or via SSH to configure the underlying OpenWRT directly for anything else). And, of course, it's just one device for hotels that try to limit the number of devices you use.
As far as travel and hotel goes, another huge benefit is that the router enables devices without captive portal support, on a recent trip I can use:
- Fi base station for my dogs trackers (huge for me)
- FireTV stick (no need to trust hotel streaming apps will clear your credentials like they claim)
Also I can WireGuard back home automatically for select IP ranges (no need to configure WireGuard separately on many of my devices)