Mine sadly has to live on the drive all year round. Don't use it when salt is around but otherwise take it for a run at worst once a fortnight, and once a month a real good trip to get heat all through the interior (Genuine VW heat exchangers ;, lots of heat even if they are Beetle ones....)
Any vehicle will deteriorate many times quicker if it is not used regularly and in reality there are many cold but very pleasant days during the winter when it is great to get the bus out for a run!
Would love to have dry heated storage and be more selective about when to take it out but having only got one number on Lotto this weekend means that ain't gonna happen.