Phil
yes, I agree. Same thing with Ham radio, nobody builds anything when you can purchase.
But, without the inventors, the innovators, the DIY folks who like to build, create, make better, the other 90% of the hobby would not have all of the wonderful controllers and such to purchase and make the lights flash and dance. But not everyone is capable of doing design work. So those who can't appreciate those who can. I'm still a newbie in this only having built my mounted pixels about 4 years ago after tinkering with mounting and prebuilding for 2 years prior. I buy the ESpixelsticks because they are a reasonable cost. Can I lay out my own board to create the same? Sure, but I'll spend the time building new props and buy the true and tested controllers.
Maybe what we need is a new subject/forum (or is there one?) of....I wish there was something that does this....because I think there are those who have no clue how to design or build, but have creative ideas. Combined with those who can do 3D CAD (again...newbie on Solidworks), 3D print, design boards, build circuits...we can perhaps bring out new fun things?