I can't even think of any pro keyboard I've ever owned that didn't have the power switch on the rear. All the reviews and comments I've read over the years where it's about a pro keyboard.., never have I seen a complaint that the power switch is on the rear. Many budget models have the power switch on the rear too. It's not like these switches are in places where you just can't get to them... If your keyboard is so crowded you can't get to the rear powerswitch..., I would be more worried about airflow problems, and a few other things than the location of the power switch.
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.