I've been a Wine Society member for 30 years. Excellent selection and service, and all available via Internet too. Free timed delivery. Many regional tastings and shows. Not remotely comparable to the commercials such as Majestic and Laithwaites, though I use both those too.
They do have stocks of older vintages particularly Bordeaux if that's your question. You should be able to find most on their website, though you won't be able to order unless a member. They will also store wine for you at Stevenage.
You might guess that I like them.
Nigel