I know for myself personally, if I go to a website and see something I like, but they don’t list a price, I will not inquire and they have lost a potential customer. I took the time to find your site, I should be able to get all the info I need while I am there without having to send an email. I also feel like if the price isn’t listed then you may have one price for me and another for someone else. But, that’s just me. If it is good practice to either put it or not, I would like to know. Thanks for the responses so far.