FWB made 60,000 or more Sports. They aren't that rare.

They are just very nice. Despite their flaws.

I agree that in terms of factory springer offerings in the 11-15 ft/lbs bracket, the best of the older guns (BSF 55, 60, 70; HW77, 80, 85; FWB Sport; Webley Omega, Tomahawk, Longbow; BSA Superstar, AA TX Mk1/2; Diana 34 series, 45) are as good and in some respects (fit and finish, for one) as anything you can buy now.