I'm the same Nick
I've got my whisky table and the rule from the missus is that when I can't fit any more bottles on the table I have to finish one before I'm allowed some more. Got 22 on the go at the moment and I have to confess I'm going to have to finish a few before
a) they lose a little of their bite
b) I buy lots more next month when I'm away
There are the bottles that friends have given me and I've opened with them (Glenlivet, Glenffidich, Macallan), the old favourites of mine that have to be around at all times (Laphroaig, HP, Talisker, Glenfarclas, Caol Isla, Glen Garioch, Jura, Brora, Bladnoch, Edradour etc)), and a few nice bottles for those special occasions (Laphroaig 30YO and 40YO, special edition Aberlour).
Of course, there's always a couple on the go from the SMWS - it all adds up.