That “peddling add-ons” thing may work for most of your stuff, Microsoft, but when it comes to paying $90 for a wi-fi adapter, the argument gets a little shaky.
https://lastchance.cc/microsoft-peddling-add-ons-works-for-us-5133085%3C/a%3E%3C/p%3E
But there’s a way around it. A few ways, in fact. All of them involve buying routers or third-party adapters, and all involve more fiddling around than the official solution’s plug-n-play, but does that matter? Every time you look at the setup hassles and baulk at the process, try and remember you’ll baulk more at paying $90 for a wi-fi adapter.
Full, handy, helpful guide below.
How To: Add Wi-Fi To Your Xbox 360 Smartly and Cheaply [Gizmodo]
https://gizmodo.com/how-to-add-wi-fi-to-your-xbox-360-smartly-and-cheaply-5133447