Editors' speed on opening big files

While playing with different editors (namely vim and sam) I tried to time how long some common editors take to open a big file (~140Mb).

Then, for curiosity, I timed less with and without (-n) line numbering:

Here are the results:

editor	real	user	sys
`ed`	4.866s	3.440s	3.440s
`vim`	2.086s	0.836s	0.232s
`nano`	16.264s	15.361s	0.172s
`sam`	way too long
`less`	3.552s	0.200s	0.072s
`less -n`	0.182s	0.016s	0.016s

Not sure what to do with these numbers, yet...