Where I do most of my riding, in the mountains in Idaho, there are 100-mile stretches without even a gas station or a building, no cell service, and very scant traffic. Roadside assistance is absolutely useless if you can't call them, and even if you could, it would take half a day for them to get there. Question to you spoke-lovers ... how do you get the front wheel off without laying the bike on its side? And if you're a GT rider, the same for the rear? The only option with my Interceptor to avoid that is to carry a 20lb scissor jack. And of course another 10lbs of tire irons. With my alloy wheels all I need is a 20oz plug kit and a packet of CO2 cartridges.
That said, I have only had one flat on a motorcycle in 50 years. It was on the front at 70mph on the freeway. (You don't want to experience that without a change of underwear).
I may never have another, but one is enough, and at 72 I have no intention of wrestling around getting a wheel off, changing the tube, getting the wheel back on, etc. etc.