Buying a new one ordinary/usual pillow you pay from 100 to 200 Eur/$ for an ordinary pillow and you have to do so every few years because you take care about your health, hygiene and sleep especially. By the way, you will be happy if you find the right one for you. Taking care of yourself in 10 years you should buy an ordinary pillow at least 5 times and will spend from 500 to 1000 Eur/$, wasting your own precious time and spending your earned money.
"So, you need to be changing your pillow, probably about once every 18 to 24 months, you need to be changing your mattress about every 7 years" Michael Breus, PhD Sleep Specialist is telling us: https://www.webmd.com/sleep-disorders/video/breus-touch-sleep
SAVE MONEY – SLEEP BETTER!