I wish there was a posted lead time or estimated shipping date.
I know you're just a few people, I know there's a backlog and you're all doing your best. I'm just looking for a ballpark expectation. Will it be a 3 weeks? 2 months? 6 months?
I bet you could reduce 70% of your support e-mails if you just provided an estimate somewhere on your site or on each order.
And if you're raking in so much dough, why not hire more people? I bet you can even get free interns from a local high school or college that are looking for experience and a recommendation.