what I don't understand is why email isn't enough. Why in this day and age do you need the phone # and address? That just tells me that you'll use my information to do high pressure sales calls, and not just to "inform" or "customize" my quote
Because email has completely different dynamics from real-time conversations. If you need to ask lots of short questions (varying based upon previous answers) than email is a terrible way to do it.
It's also much easier to figure out misunderstanding on the phone due to the more informal nature of phone calls rather than emails.
