Replace at 4 yrs?
A good question.
With linear depreciation (ish?) I dont believe I will lose too much money in changing at 4 yrs/ 800 hours.
Balancing this with the likelihood IMO that it is unlikely to all go the 2400 hrs without major expense I do believe its a good idea.
Who knows, but what price peace of mind?! These things are constantly being improved.
Anyway, like a new car, its a feelgood thing. No pockets in a shroud. The last one was blue - I'll have a red'un etc.
Catcha
HP