Yep, or you could describe the physical product and make sure it's clear what people are putting their email address in for. Like "we ship a box of surprising

Yep, or you could describe the physical product and make sure it's clear what people are putting their email address in for. Like "we ship a box of surprising Japanese candy to your house every month" then explain why you need the email. If it was my lander I'd experiment with showing prices before you ask for an email. Just from my experience people are reticent to put in an email without knowing what the reason is.