I see the decline of the golf component industry has many cause.
The millennium generation is a generation of disposable generation, in that, they use stuff and throw it in the dumpster, they either not interested in fixing things for reuse or do not know how. A generation growing up had things handed to them on the silver plate. Their logic path is the search the internet and trust what they had found with other's opinion.
My father's generation and my own will fix things up not just to save money but it's a joy of seeing the continuing service of older equipment. Younger generation will Google the pricing and dispose of the older equipment simply because it's "cost effective", even when the older equipment were still functioning.
Also they are counting on "help" from the government and the family members to get them through tough times.
The joy of tinkering with golf components is not just saving a few buck in the old days. The joy of making something and believing it's superior to the off the shelf stuff was a big factor for golfers to learn the basic of golf club making. It's too much work for the majority of younger golfer and it's " not cost effective" and does not work for "show and tell" to their peer. OEM name brand sparking better, like the Titleist golf balls are the best because it's the most expensive and a lot of professional golfers endorsed it.
Unless the OEM equipment turn higher price point, the golf component world will stay quiet for a long time.