All this talk and nobody has bothered to point out the biggest difference between DT & MPC: 8-voice polyphony on the DT, >64-voice poly on the MPC. DT has 8 audio tracks and 8 MIDI tracks, MPC has 64-128 tracks of either type, depending on the MPC model.
Another very crucial difference: a DT “pattern” can contain up to 64 discreet note events per track, MPC can contain an unlimited amount of note events per track, with “patterns” being up to 999 bars long.
Before you choose either of these, make sure you know the specs and what to expect. If you have mainly used FL for making beats, you might easily assume that everything has unlimited polyphony and patterns that can be of any lenght, well this doesn’t exist in hardware land. Just stating the obvious here in case you haven’t thought about the implications.