Glide descent
And the satisfaction of computing the descent point in your head.
Three times the flight level (minus 0ne zero) plus 10 miles;
plus or minus one mile for every 10 kts of wind;
plus or minus one mile for weight deviation;
plus or minus a little for individual ATC whimsy;
plus or minus something for known non linear wind
minus 20 miles for 350 kt descent.
The joy of working out this exact spot then power off at TOD;
thrust levers at idle until spool up at 500' on final;
A good operator never touched the speedbrake.
FMC computed descent. Bah humbug.