This practice doesn't seem to have much priority on the Web. Multitudes of sites seem predisposed to minimizing contact with their company by hiding their phone numbers on inner pages. It's not a bad idea to have all your contact information displayed on the home page. In fact, consider displaying it on each page, at the bottom in a smaller font size, with copyright info. Other critical information should be easy to find within one click of the home page.
Prices are important.
If you have a product, you need to tell people what it costs. That will be a first question on the mind of most of your visitors. If you are not selling direct, you should have a suggested retail price. You might even consider providing the street price. If you are selling over the Net, please make shipping charges easy to find.