I thought the idea behind Internet Quotes was that you already have your homework finished -- that is, you already know what kind of car you want, and now you are just shopping for price.
Before I bought an 06 Forester, I tried many of them at various dealers. After several test drives, I knew exactly what I wanted to buy. Then I went to Edmunds.com and had them contact all my local dealers for quotes and availablility. That's how I thought Internet Quotes was supposed to be: the Internet Manager gives you the best price because he doesn't have to "sell" you the car, you already know what you want to buy. You don't take up a lot of his time, he doesn't get a commission. You're just looking for the best price quote. The price from all the Internet managers I talked to were non-negotiable, and that is what I expected. They give you their bottom-dollar price, then you just take it or leave it.
After Edmunds contacted the local dealers, the dealers' Internet Managers emailed quotes to me. I responded to the ones who gave me the best quotes.
Naturally, I would not buy a car without test-driving it first, but neither would I talk to an Internet Manager without knowing exactly what I want to buy.
They guy you dealt with doesn't sound like any "Internet Manager" I have ever met. (I have met a few.) It sounds like he was just some regular salesman posing as an "Internet Manager."