In fact, Clarity estimates that about 70% of people respond positively when approached about being added to an email list during an offline conversation. Furthermore, Clarity says that emails acquired offline are reported to have much higher click-through rates, sometimes more than twice as much. Make asking for an email second nature, and you’ll quickly grow your email list.
If you choose a product everybody wants - like an iPad or an Amazon gift card - then you’re risking driving unqualified leads to your list. You don’t want to end up having to pay to have a bunch of unengaged people on your email list who aren’t interested in your topic and who will just unsubscribe the second you send them the next email and they haven’t won the giveaway.
In this context, I guess each post can’t be thought of in isolation, but in terms of a mini content ecosystem that comprises of a great blog post optimised for on-page SEO, an upgrade to that post tailored for that specific content, various on-page email conversion points including an exit pop-up or similar -and then you combine all this with your off page link building and outreach efforts. That could be over 5,000 words of content all in just that one package.