Should I buy a new 5K iMac?

Episode 1300
Laura fromLaura has had an iMac for 9 years and is wondering if she should upgrade her Mac to a new one. She's looking at the 5K iMac. Leo says it's a beauty and the best computer that Apple makes. Leo says that's a beautiful choice, but she shouldn't feel like she needs to buy a new computer if all she needs to do is replace the hard drive in the old one.