Re: Want vs Need
I don't think you can always draw a clear line of separation between want and need for this sort of stuff. There are lots of valid non-monetary reasons why you might be interested in something.
Making money is nice, but I'm willing to sacrifice some profit margin in exchange for a pleasant experience. Having good gear makes the work easier and can even lead to more enjoyable clients. If the only thing any of the small sound co's cared about was ROI we wouldn't have half the stuff we own, and there would be a whole lot more SOS rigs in service competing for corporate gigs.
Sure, you might classify my view as a "hobby" outlook, but IMHO we spend enough hours of our lives working that we might as well enjoy them.
Want the ROI answer? You don't need it, keep what you have for the next 20 years.
Want the answer that will make your gigs more enjoyable? You might need it.....