For me, riding FG is liberating. It's limitation is a self-embraced choice for expression within a single gear. I feel powerful on an FG. On the road, I keep up with my friends on $5000 bikes and drop them on the hills. Riding FG makes me a stronger, better rider.

Simplicity is a value and aesthetic I cherish.

Yes, gears are more mechanically efficient. But with my 1/8 chain, 1/8 chainring and 1/8 cog, my drivetrain is gonna last longer than an ultra narrow chain and cassette. Unless I am riding with geared people going 9/10 to 10/10ths, they are not faster than me anyways. On FG, I am fast enough.

Lastly, I am happier riding FG than other forms of cycling. I will not presume to preach to anyone, but if they ask, I share my love for FG.