It's nice to have a full throwback bike. It tells you many things - what worked then, still works fine now. And then, what works now that is quite superior. My eroica bike reminds me that the ride of an old steel frame can be as good as any. Modern tires and cassette gearing is something, however, that I really prefer.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.