I'll be honest, it depends on where you want your sound to go.
Being that you said you "heard it's good for beginners", I'm gonna assume you haven't done much production at this point.
If you know you want to make music in the lines of what can be done on an MPC, go for it, but most modern music is taking advantage of functionality you will not find in an
MPC 2000XL. I'd suggest a beginner start on software over everything else in 2013 UNLESS they want a distinct sound the MPC alone is capable of giving.
All the software options from FL to Maschine to
Ableton Live to Reason(and everything inbetween)can do everything an MPC can while incorporating options utilized in modern music the MPC absolutely cannot.
All an MPC does is sample and sequence, no keyboard sounds, no synth engine, so unless you plan to go the route of more classic sounds(Pete Rock, DJ Premier, ect)you're going to have to add other gear to make complete tracks.
I wouldn't advise limiting yourself while starting. 15 years ago, an MPC was one of the highest functioning "starting points", but alot has changed thanks to advancements in software. You will not have a mordern sound with an MPC alone.