Post

A lot of the reason to get into modular is the ability to turn anything into a percussive sound source. It's only limited by your imagination. An oscillator, wavefolder, low pass gate, etc... Even a self-oscillating filter, VCA, and envelopes... That's what makes modular fun.
There are plenty of drum oriented modules like Basimilus Iteritas Alter, Plonk, and the now discontinued WMD stuff, but drum machines are far cheaper. Just depends on what you are trying to do, and how deep you want to get into creating your own sounds.
Good luck and have fun.