Two qualms with this item:
You've vastly underpriced it.
Command word activation: Spell level * caster level * 1800
17*9*1800 = 275,400
The autocounterspell ability is a bit hard to price, but I'd say it's worth about 40,000. YMMV.
A +1/+1 quarterstaff is 4,600 gp.
275,400 + 40,000 + 4600 =...