There is economics and there is emotion value. I assume your parents are going by economics. A repaired older device is still an older device and depending on how reliable and capable that design was, it might be near the end of its life - Sooner or later needing replacement anyway… And then there is emotional value. I get it - I like antique radios. And one that ties in with my family history is special… Here is a suggestion - Offer to pay for the repair yourself or in chores if you don’t have a job. They would likely agree to this. But also remember that things are still things and not people - They are replaceable. You will go through many possessions in your life - Some will be special to you. Honor those but don’t be a slave to them.

You can get a new computer and still keep the "Sentimental" computer. Unless you're afraid of hurting the feelings of the old computer.

Look up Linus tech tips, and some other channels online you might be able to fix it yourself and if it’s old enough, you can get the parts on eBay and install it yourself many times you can get the entire display assembly housing and replace it just at the hinges and just be careful how you route the cables, but it’s not that difficult. Watch the videos a couple times until you understand how it’s done and if not, look it up or ask a friend I’m sure they’d be willing to help you if they know something about computers. Especially if you ask them to teach you to do the repair. iFixit also has guides Source: I’m a technician and engineer for HP