Interesting, The last 10 Kubota's I've purchased (I've owned more than 10 in my lifetime, I never even considered asking for a discount and I bought them all from 2 dealers and I felt the price was fair without 'lowballing' anyone.
Only one I dickered a bit on was the last one I bought this spring, a used open station M9 with a loader with 4500 hours on it at a JD dealer, I took full advantage of them not knowing what they really had and bought it for 16 OTD and had them deliver it to the farm and I was 300 miles from where I bought it.
Normally I don't do that, I'm a name your price and if I don't feel it's fair (you make money which is necessary and I get a fair shake and I'm good with that), if not, I walk away and I know ahead of time what an equitable price is.
Just bought a Kubota Sidekick side by side from my dealer, 13 otd with folding windshield, turn signals, roof and lined bed.
I know he made money and I'm happy with the price but more important to me is, if I have an issue, I know it will be dealt with promptly and correctly. You lowball a dealer he (or she) might not be that 'hospitable' when it comes to service or parts.
Don't play that game as a rule.Might add, I never pay sales tax, we have an ag exemption.