I’ve been making my own lattes for around 15 years now. Compared to overpaying at Starbucks or even Dunkin, I’ve probably saved on the order of $15,000 or $20,000. Plus all the time I wasn’t wasting driving to a store and sitting in a drive thru line.
They still make the espresso machine I bought back then, it’s around $1k now. I think I paid $600. Another $200 or so for a quality burr grinder. $100 for a milk frother back then, when it died I just started using a Pyrex measuring cup in which I nuke the milk, then froth it with a battery milk frother wand.
This stuff isn’t that complicated.