We really buy luxury items for the kids more than for ourselves.
Like since my 1-yr-old is still on the waitlist for daycare, we decided he needed some of the bigger ticket items + variety that my other son got to play with in daycare or in doctor's offices and that sort of thing. So I get to spend more on toys for him- like he has one of those $100 bead maze/activity centers now.
My son got my mom's hand-me-down tablet but it broke last year. We ended up spending about $300 on a new one with more space and ram for him - we just felt like he was cooped up and couldn't play with his friends and stuff, he needed something.
He also has my mom's hand-me-down all-in-one 24" dell, and I let him take over my red dragon mouse and keyboard (so the backlights are rainbow colors with different settings). He plays minecraft Java edition on it, and his cool mom helped him install some mods like pixelmon and metamorph. But he also is starting to get comfortable googling stuff when he wants to know how to do something - between YouTube and Google he is becoming really good at learning what he wants to know on his own, which is such an important skill. (No worries - the computer is on his desk right in the living room)
Anyway to me those are big luxuries I would never have had as a kid.
Probably the most luxurious thing I get for myself is paper plates and bowls - I hate to go through so much, but working full time plus baby on my own every day, I just can't keep up. They've really saved me.