Little makes playing PCs or running monsters more tedious and "bureaucratic" then having to have several buff spells active to just get on equal ground to your respective opposition.
I totally agree, but there is a fine line between "Guys, we need to make a plan and prep for Master Monster X or he is going to paint the walls with my goo. Let's talk to the sage and see about getting some rituals, you go research some weaknesses and rogue --- well, rogue, just stay out of trouble,"
...and....
"I cast X, Y, Z, again, alright ready for combat."
The first is fun, IMO, the second is script-boring.