Good, solid reasoning. Care to explain why straight gauge spokes suck?

I'm not a big fan of double butted spokes. I build with straight gauge because I build exclusively singlespeed wheels that I know I'm going to be cranking a lot of lateral force on as I stand and rock the bike on steep climbs. Straight gauge spokes create a build with less flex and forgiveness, so if you're looking for something to help dampen road chatter, they're not it. Instead, I rely on higher volume tires (32mm) to smooth out the ride.
Even when I rode geared bikes I built with straight gauge. In countless tens of thousands of miles, probably even reaching the 6-figure mileage range when you add up all my riding over the decades, I've broken a grand total of 2 spokes (which I can't attribute to something specific like an accident or flubbing a landing after hucking off a loading dock.)

Aside from being heavy and relatively inelastic by comparison, what's wrong with straight gauge?