end of subscription

Hi,

I'm just coming to the end of my subscription and trying to decide if i want to continue or not.

I'm not a developer, just an online dabbler with a couple of website so I'm not really getting the full value of your membership.

I was wondering though, if my membership expires do my plugins and themes stop working altogether or can i keep using what I've got installed but just not get any future updates?

Thanks for you help.
Iain