How long do you think Onyx Max Lumi can last?

I bought a Quaderno 13.3 inch, becuase I thought it could last longer than Max Lumi. But I am thinking to return it.

I can not afford to buy a new 13.3 inch eink tablet every year. Do you think Max Lumi can last 4-5 years of use. In the next 2 years I plan to use it about 10 hours per day since I am a phd student, and after that only in the evenings maximum 2-3 hours.

Thanks in advance.