I'm sorry but I do not agree about a 3 - 5 year life for my recording equipment.
Buy carefully and you can far exceed that. It also depends what you want from your equipment.
I record mostly real instruments and require good quality sound, compressor and reverb with some copy/paste function.
As I stated, my AW4416 as a mixer / recorder still works perfectly well apart from one input. It was in magazines YEARS ago.
Don't get too caught up in the technology. It's only the tool. It's what you do with it that's important.
Jack of all trades, master of some.