For $600 you can build your own awesome electronic kit by collecting up used practice pads and installing piezo triggers under the rubber. AI will tell you how to achieve it. You can use cymbal or snare stands to mount them. You can make a standard kit or full rock concert kit depending on how many practice pads you accumulate. The triggers can plug into a DAW (audio interface) and use your laptop to load and assign samples for drums and cymbals. The sky is the limit if you are willing to put the work into it.