I think I paid an extra $100 to Dell for mine, 14.4 being standard. At 28.8, I was rocket man.
I remember the jump from 300 to 1200 like being supercharged. Compuserve, Genie, and Delphi. And a whole lot of long-dead BBS's... I think the first time I saw the term "email" was on some general aviation board I ran across in 1981.