That was the early '70's, when patch technology was a bit iffy. As far as I can remember, I've never had a Rema patch fail.
I don't have to deal with goatheads like those pictured earlier in the thread, but what with the tiny 3-day-beard-length whiskers from steel-belted car tires and those nasty headless nails that litter the roads around construction sites, I'll stick with patching tubes for the foreseeable future.
Though I suppose I could get a set of tubeless wheels and take up some busywork hobby instead of patching tubes. Maybe embroidery.
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You are always the same age inside.---Gertrude Stein
My aluminum bikes: Light, strong, cheap, and comfy.