Price it in hours of your life, not just dollars. Three questions, no login.
Plenty of things are worth it. Now you can choose on purpose.
In Your Money or Your Life, Vicki Robin and Joe Dominguez call money life energy: every dollar is time you traded for it. At $20 an hour of your real time, a $300 thing costs 15 hours of your life.
Hours cut both ways. They also give you permission to buy what's clearly worth it, like a good mattress you'll sleep on for years, without the guilt.
Your take-home divided by the hours you give to work, commute included, gives a rough hourly figure. The price divided by that is the hours. A gut-check, not your exact wage.