Why did you expect anything off? Is your "cash" worth more to the dealer than a check from some finance company, for the same amount? Was the alternative going to be you using your Visa card?
Quite right. Why would they find cash more attractive? They would make much more off MoCo financing, or some other linked institution covering the collateralized loan. It shows real desperation for them to even give you a 1% discount. If things were flush they'd have been laughing for weeks about the guy that asked for a discount for cash.
Dealers don't make that much off a bike...especially Harleys....it's the accessories that really pay off.