Prices fluctuate locally. California, for instance, has much higher resale prices for motorcycles. I've seen late model RC51's going for upwards of $7,000 even with 10K or more miles. 27K miles on the clock is considerable wear and tear. The other thing to consider is that $4.5K is the asking price. If the bike is clean (no leaks, no cosmetic damage, never been dropped or raced), and has had a recent full service and has new tires, chain, etc., it might be a good buy. Since it's asking price, you can try to counter to get where you want.