A new hobby for an ordinary man in his 50s (?) _ Collecting alcohol_#1

Since I travel abroad for business quite often, I've been buying things one by one at duty-free shops for the past 2–3 years, and I've finally filled up my liquor cabinet. The items that seemed so numerous on the floor look a bit sparse now that they are on display.
Moving forward, I plan to fill the cabinet focusing on single malt whiskies aged 20 years or more. Looking at the empty spaces, I feel a compulsion to fill them, so I find myself just waiting for my next business trip abroad.