[pm215]

But how often do you boot a modern laptop in the first place? I feel lke the time I save in not waiting those 5 seconds occasionally is all going to be spent again in the minutes wasted having to look up how I stop the instant autoboot (or failing to stop the autoboot and having to reset and try again) the first time I need to actually interact with grub...

[JoshTriplett]

Every time you update the Linux kernel, among other things.

Or, if you're working on speeding up virtual machine boots, in which case you skip the bootloader entirely and use the kernel's EFI stub.

[simonask]

Every time it runs out of battery power.

"I never let that happen." Cool.