Luke had made a good amount of money recently, and it didn't sit right with him if he didn't spend any.
Money, when abundant, is just a number, and only when you spend it does it truly become yours.
During his downtime, Luke planned to buy some quality wines for his collection.
Many types of alcoholic beverages are available in America, including red wine, whiskey, rum, brandy, and champagne.
Luke was not very familiar with these foreign liquors, and moreover, they were not as easy to store as white liquor.
This time, his main focus was on buying white liquor. Once Luke bought a bigger house, he planned to build a wine cellar specifically suited for storage, where he would then start collecting foreign liquors.
Buying wine in Los Angeles differs from back home; here, one doesn't worry about counterfeit products and can simply purchase from large supermarkets and wineries.