Need MPC advice for Christmas present for my son

My son is 10 and for the last 2 years has been writing raps to instrumentals on YouTube. He has shown interest in the drum pads and we checked some MPC’s out at the local Guitar Center. Did some research and the learning curve seems steep for me, even as an adult.

This would be a long term present that I know he would grow into. At first I know he will want to load instrumentals to rap to with a microphone and also play around with the drum pads. Am I over my ski’s looking at a MPC One +?

My reasoning for MPC One + is that it doesn’t have to be connected to a computer or tablet. We want to hold off on that and just load instrumentals and let him do his thing. We can connect a PC later when he’s a little older.

Any advice would be appreciated.