How long does a subscription last?

[Enforcer84]

I purchased a subscription, promptly bought issues 1-10 and now wonder can I wait another 10 months to buy the next ten issues or do I need to renew before then?

[Steve Long]

You can buy more credits anytime you like. So, please feel free to "re-subscribe." :)

We've actually found this to be a pretty strong pattern. Most people who have signed on after #1 have gone back to buy the issues already published, so they need to buy more credits sooner than one year after they first subscribed.