I, too, wondered if all the emails were at a level that might be considered annoying, but I guess only the people involved can say that with certainty, and apparently they didn't tell you to lay off.

BTW, ever read the book 'Growing a Business'? It's one of my favorite business books; it's about a mail-order garden tool business (which is what triggered the association).

http://www.squeezedbooks.com/book/show/4/growing-a-business

It probably doesn't have a lot in it that you don't already know, but it's a nice one if you can get ahold of a used copy or from the library.