I like a skinny tire on my older bikes mostly for the looks of them. BITD when I fell in love with bicycles, skinny, high pressure tires were what the cool kids seemed to want. So to me they look appropriate for my bike boom steel. My modern bike has 25s on it just because I wanted the Continental GP5Ks when they were only available in 25 to give it a retro vibe. They were actually a better ride IMHO than the Bontrager tires the bike was born with. But when the time comes, I will probably go back to a 32 in a better tire than what the stock Bontragers. Hopefully a better and wider tire will be an improvement still over the GP5Ks.
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"It is the unknown around the corner that turns my wheels." -- Heinz Stücke