Yeah old Macs on their own are very dull computers. Once you start to get into third-party tweaks and games that push the hardware to its limits are where it really starts to get interesting.

My favorite classic Macs are the ones with color screens and CD-ROM drives. The multimedia possibilities really start to open up! I have a Performa 575[1] that was just about perfect for this, but it suffered a fall in storage that shattered the case. If it ends up being a total loss I'm going to start looking for a Power Mac 5200[2] which is better looking and can run early PowerPC applications.

[1] https://en.wikipedia.org/wiki/Macintosh_LC_500_series [2] https://en.wikipedia.org/wiki/Power_Macintosh_5200_LC