Why is there such a price difference between the MixPro and the MC6000. Besides extra functionality and a more solid build, isnt $1000 a bit steep? Is the MC6000 worth the money, or is the MixPro just great for beginners and for bothWhy is there such a price difference between the MixPro and the MC6000. Besides extra functionality and a more solid build, isnt $1000 a bit steep? Is the MC6000 worth the money, or is the MixPro just great for beginners and for both gigs and bedroom mixes? gigs and bedroom mixes?