I use a 2008 Dell Inspiron laptop as an office PC. I upgraded the CPU, which would be absurd for a new notebook. I also upgraded to 4 GB DDR2, and an SSD. It still works great!
I think it’s always best to keep things maintained and continue using them instead of buying new things. Maybe some of us have a bunch of old stuff laying around. But what stuff are you still using?
My beloved Microsoft ergonomic mechanical keyboard. It’s about 30 years old and only now are some of the key labels starting to wear off. (Still using it.) My new keyboards lose their labels in less than 6 months.