[aestra]

Should you bold the text? YES.

This is a very important action. You want to make it very clear to the user they are not just purchasing a pair of boots, but also subscribing to a service, since you are presenting yourself as a normal retailer!

Less scummy thing to do - include the subscription as a line item in the checkout. HOW HARD IS THAT?!!!??? Oh wait, that would make it clear what the user is actually purchasing. We can't have that.