I think a lot of you are being unrealistic about what a sales person can know about the total product base - no matter how much information is available on the Internet. There are just too many products, even among a simple class of product like compact utility tractors.
Do you really think a sales person has the time during the day to surf the net? They're supposed to be selling - not surfing. Look at all of the manufacturers and all of the models discussed on this forum - I just don't think anyone can be familiar with every model of every manufacturer in-depth.
In the early '80's I managed a photo store. My job was to know as much about photographic equipment and materials as possible. But, realistically it was impossible to know every single model of every single manufacturer in-depth. In one product area alone (cameras) we sold: Canon, Nikon, Olympus, Bronica, Konica, Yashica, Mamiya, Deardorff, Sinar, Plaubel, Leica, and Minox. You could not know every feature of every model, let alone all of the accessories available from the original manufacturer and secondary manufacturers.
What I did was asked my sales staff to learn the entire system from at least 3 manufacturers that they liked or wanted to learn about. They became the "subject matter expert" on that system. Normally, a sales person could answer the questions asked about 85% of the time. When it got into the 15% esoteric area - you called in the expert who could converse with the customer.
At the very least, if no one was available to answer a specific question, my direction to the staff was to just say, "I don't know, but I'll find out." If we could, we got on the phone and called the manufacturer immediately for the information. If the manufacturer was not available (late in the day, Saturday, etc.), we got the customer's phone number and called them back when we had the information available.
In my experience, that's about the best you're going to get no matter how dedicated or interested a sales person is in the field in which they're selling.
Do you expect them to spend all day selling and working with customers - and then go home to surf the net for another 3-4 hours? Life ain't tractors 24 hours per day for everyone....some people actually have real lives.
Lastly, as for price - I only expect the best price the dealer can give me and still stay profitable. It doesn't do me any good if they go out of business giving away products just to be "competitive."
I'll have to go back to cameras one more time. At the time I managed the store, I could sell a Nikon F3 for $585 - I paid $535 for it plus shipping if I did not have it in stock. I had people come in to the store who wanted me to sell it to them for under what I paid for it because they saw it advertised by a store in New York for a price that was $20 under my low net.
Believe it or not, even if I took out my Nikon price book and showed them my low net price - they would still want me to match the lower price. Why? Because they believed that somewhere there was some hidden discount to me that I wasn't telling them about.
If they had the time and interest, I'd explain to them how you could get cameras at a lower price, but that I couldn't place 1,000 piece orders of a specific model to be delivered quarterly over the entire year. A deal that guaranteed the manufacturer a base order that paid his costs for that model for the year.
If they still didn't understand, I suggested they should order it from the New York dealer as I could not afford to sell something for less than I paid for it. A FEW of them actually understood that concept.