Which do you prefer: Saving up and upgrading all at once or upgrade every time you have enough for a floor/dorm? Why?
Upgrading when i have enough, especially when the tut market is bad and no ones hiring or bumping tuts. Whenever you upgrade (other than t4 and t6 levels 3 and 4) your plunder increases, so if you upgrade each time you'll earn money faster. 1m 1,000 plus times adds up.
Well depending on your tier because as you keep going they get more and more expensive I suggest upgrading when ever you get the chance.
Upgrade on every dorm plus an ammount of cash for tuts to keep on max plunder cz when u upgrade u will be able to get the cash faster. But keep a minimum limit of cash on hand ; u dont know when u get a dv so always be ready. Ex: i keep a minimum of 10 B and every 2B i get i upgrade 2 dorms.