I never want to talk to a sales rep. Just put the features on your website. If you don't, I'll assume the sales rep will lie to me to get a sale.
I never want to talk to a sales rep. Just put a demo on your website. If you don't, I'll assume you're sales rep will show me a demo which doesn't match reality.
Etc etc etc
What about complex enterprise-ish products that need some explaining, like contract management tools or ERP or HR software?
HR software is a commodity. So are CRM, ERP, and other things like that. You have a price per seat licence, or a price per feature, or a price per year. Just tell me what it is.
Even if it's custom development, you can publish a price list.
It's not really, a commodity is typically fungible and these services you've listed are not easily swappable. There is a lot of cost in switching.
There is a wide range of service quality which you cannot determine by simply reading the website. You can figure this out by talking to a person and seeing how the company responds to your inquiries.
I'm in the process of leaving one such vendor because I did what you like to do. Just sign up easy on a website. It was a mistake and cost me money to fix because their service was bad and their support refused to fix their mistakes. I'm likely to go with a more expensive, bigger player in the field now.
So why not put the documentation on the web for me to read?
Normally, it is because they want to obfuscate the price and use sales tricks to encourage me to buy.