TBH, expired wup means you can still run and update according to v9rxx, where xx is installer revision.
These bugfixes for v9 do no require active in a wup.
What you miss out on not being in wup, is that new plugins added to bundle you own will not run.
Last year I was in wup, and Vitamin was added to Gold bundle, so I got that for "free".
Those that have Mercury, would have gotten H-Reverb now etc.
And wup also come with a voucher on that amount, meaning you can use that money getting discount on top of other campaign offers(25% on single plugin, 50% on bundles).