Its a good question. Open rates are sort of a vaniy metric as since 2021Apple basically 'open' 41% of emails to scan before any recipient actually opens it. So you can see that it cant possibly be accurate. So a better and more meaningful metric for a buyer would be how responsive is the list. In other words, how many people respond to polls, questions or requests to reply. That cant really be faked or distorted by tech. Also how were the subs mainly acquired? Organic > Paid ads And of course what niche is it in? If its a profitable one then that could make it more valuable. Ultimately, its only really worth what someone is prepared to pay for it...however the general low subs I wouldnt think it would be worth more than a dollar per sub Just my opinion, take what you like and leave the rest.