I'm sad I missed the office-with-door era. I started working in 2011, and my first company still had some real offices, but you had to be pretty senior. I made it to that level right around the time they got rid of them :-( and no other place I've worked at has had them for anyone but execs / senior managers / sales and the like.

To date the best working condition I got to actually experience instead of just watch others have it, was when I interned at a federal government agency in 2009 and had a real cubicle (and an electric standing desk!) -- the same thing Dilbert comics were complaining about so hard in the 90s, but far better than the open office pits that replaced them.

The best part about offices with doors is you didn't need to worry about formal schedules and meeting rooms as much, because anyone could have an ad hoc meeting in their office any time.