Another thing I find pretty amazing is how much guitar work is 100% digital these days. The progress in DSP technology has allowed thousands of sounds available to the masses. $500 goes a long way these days which wasn’t true a decade ago.
I love this tech, really, and the fact that it brings people closer to making music.
On the more budget end most audio interfaces these days will have a Hi-Z input for guitar, there are many great amp/stompbox emulation plugins these days.
There are also various plugins that emulate a single kind of amp, but they're not quite as convincing, or as popular.
The Kemper was designed by the same dude who designed the Access Virus, which is more than two decades old now and still considered a classic pseudo-analog synth implemented with DSP.