Okay, but what if instead of choosing, I get both?

I have a preteen who wants to do hip hop beats but needs to use a parent's computer to access Midis. Is there an affordable midi-controller slash drum machine that they could hook up to a computer and stick a toe in the DAWs but also use independently when there isn't a computer available for them? Correct answers will be rewarded with better music in 6-10 years.