Who say these DIY efforts are "first time around", it seems to me some of them actually spend limitlessly amounts of time and money getting it right.
Good point I have a pair of 4 way active analog speakers as part of my HT set-up. I have gone through multiple driver changes and upgrades over the almost 20 years I have had it. Last upgrade 18 months ago. It's a system that has always been set up so I could make driver swaps over time.
Unfortunately don't fit the limitless amount of money time I can give.
As technology has changed I have built DIY builds with newer drivers as they became available. DIY is not stagnant you are free to try new approaches as time goes on.
Rob