Okay, put it another way..., with a budget of five or six grand, what road bike would you actually buy, given that you can only have one...? Right..., tricky, but I'll go for Honda's superb CB1100RD. There, I've said it.
Prices are on the up, but I reckon a buyer could be lucky and find one for around the £6k mark. Or maybe not! Recently saw an RC advertised for nearly twelve grand! Silly money. Same for the CBX1000, RD500 and RG500. All four bikes are now collectors' classics and are consequently going up in value almost daily. But I'd only go for one of them!
29 Dec 2020 - Just spotted a 1982 model on eBay (see below) being advertised by a Sheffield classic bike dealer. Has the 4-into-1 exhaust fitted, one owner, 41616 kms, price £19,999. Wow! Yes, they do seem to have shot up in value, but the asking price ain't always the selling price.
Then spotted a very similar model for sale in France (see below). Same year, 44930 kms, all standard with original 4-into-2 exhaust, price €15,390 (about £15,150) - about £4850 cheaper, but still pricey to a tight-fisted, elderly biker such as moi. Lovely bike though. Good investment.