One of the reasons you wanna listen to an entire side of an LP is that it just takes more coordination and physical effort to get the thing to stop or pause, not to mention getting sound out of it in the first place.
You gotta stumble over to the turntable. Lift the often balky turntable cover, making sure that it doesn't go crashing down if you don't do it right.
You gotta lift the arm and move it back to its rest.
You gotta turn the record player off.
You gotta unscrew the record clamp and safely stow it away.
You must lift the vinyl off of the platter, taking into account the sometimes goodly amount of static electricity that has built up between the vinyl and the platter in the meantime.
I'd go on, but my fingers are getting tired.