I understand what you are saying, but a good dealer does not need this. EVERY person that calls, emails or stops in the dealership ought to be treated as a buyer. As Messick has rightly stated above, the tractor industry tends to be not very good at customer service. That's a broad brush of course, guys like Messick and many others give outstanding service. When we started our dealership 16 years ago (and literally thousands of retailed tractors ago) I told my wife that if we just respond quickly and politely and treat people well we will distinguish ourselves from most of the competition and sell a lot of tractors.
If you send us an email for a quote, we may ask for your location before we quote you (in case you are 2500 miles away...we do value our time somewhat and do not wish to step on other dealer's toes), but we then quote you a tractor. Then we assume you are a buyer and ask when you want it delivered, or if you plan to pick it up or if you want to buy a trailer. And we sell a ton of tractors by simply assuming that if someone inquires that they are a buyer. And most are.
And the guy that comes in unshaven with a beat up pickup truck....he is often a cash buyer. Never assume otherwise. Treat all people with respect. I think there are quite a few dealers that share our way of doing business. You just have to find them.