Its simple. the fake plants will never have the bloom the real ones do.
How do you know when an older amp needs service?
I'm using Aragon 8008BB amps and they range from about 8-15 years old. How can I tell if they are performing at their peak? They still sound good and they weigh a ton so shipping them in for a check-up would be difficult and pricey. Is ignorance bliss or should I be looking into having them serviced?