This thought came to mind last night. I was a tube purest 100% for years, and even built my own amps before discovering the axefx. I'm hooked now, but I realized that I'm now playing a high-tech computer for a guitar amp, and not a simple circuit that can be maintained.
Is there a life expectancy?
Unlike tube amps, I can't just replace tubes and put in new filter caps every 10 years to keep her running forever... Computers die (I know, i've had a few expire in my lifetime)