For my understanding of SSD, the life expectancy is given for rewrites of the sectors. For a Bitcoin node you are only going to write them once never erase.

An HDD being spinning 24/7 for years... The life expectancy is given by hours running independently if they are writting or not. 

Power consumption and noise defenitely weight a lot in this ecuation.

The chain is already 1TB so imagine average 2MB blocks, a 2TB drive has space for 500.000 blocks, you have 9 years. If the blocks are full of pics then 4 years of space. 

p.s. did you see that? Time measured in space🤯