What do you think about “What do you think?”
“What do you think?” is a weak ending to an email, according to Power Sales Writing: Using Communication to Turn Prospects into Clients by Sue Hershkowitz-Coore. 
I said “uh oh” to myself upon reading this because I’ve used this in emails accompanying proposals. Hershkowitz-Coore suggests you encourage your reader “to give you the result you want by offering your opinion and asking for her approval.” She prefers a closing such as “Please let me know which direction you prefer, and with your approval, I’ll move ahead. “
I like the idea of nudging prospects in the right direction, but I also want to show that I’m open to my prospect’s feedback.
There must be a middle ground. What do YOU think?
Susan – I’m a big fan of the simple “Let’s chat.” or “Once you have had a chance to review, let’s talk.” Most people do still respond by e-mail, but at least the door is open for a two-way conversation and the opportunity for a deeper understanding of where the person is coming from.
Suzanne,
I like your suggestion.
Thank you for taking the time to comment!