If you can pay for business class without flinching, then you are definitely comfortable. Even then, depending on your psychological makeup, you still might flinch.
I'm comfortable, but I still bristle when I see business class flight prices, so I generally go in the middle...premium economy! If I get an upgrade... great, that's icing on the cake! You still get priority boarding, lots of leg room and shoulder room, plus you pretty much get all the food and alcohol you want on the flight. And they still give you a pillow and little duvet!
Then again, I didn't have any problem dropping $12K for two nights at the Fairmont Hotel Vancouver the weekend before Christmas for a 3-bedroom Gold Level Suite and a fully catered and serviced Christmas Dinner for 14 people in our suite's dining room. It was awesome!
I'm ok spending a lot of money on experiences with my family. Even my nieces and my nephew had their own little dining area off the living room where they had their own server for the evening. Plus they had that Home Alone 2 sundae...16 scoops of ice cream with all sorts of toppings and syrups! And the hotel threw in the Christmas tree for my living room! We've been doing this for about 10 years...on a much smaller scale when I had less money...but this was the grandest year...Fairfax's return in 2024 was worth celebrating!
Me personally...I still shop at Walmart because I like a bargain! I'm incredibly frugal except when it comes to experiences. I would rather spend money on something like this than a Rolex or some other material object. Cheers!