DH has gotten into cocktail making recently. To give you a better scope of how into it he is, two months ago we owned a cheap shaker that came in a package deal with some vodka about 20 years ago; and a set of wine glasses (4 each red/white) and a single champagne flute from NYE 2000.
We drank beer, wine, or an occasional easy mixed drink, like rum & coke. [sidenote: they need to bring Zima back permanently. I miss that stuff.]
He has since purchased: a bar cart; multiple bar tools including a strainer, big spoon, shaker, etc; glass sets, including rocks, double rocks, collins, tiki, coupe, margarita, and Irish coffee mugs, and some I probably forgot here; and about $1K in various alcohol/mixers/cherries/etc.
He spent sooo much time looking up what's considered the best in various categories.