Had to do this last month, they pushed it to $10,000 / 225 items, which is plenty for me.
You're also turning yourself off, possibly permanently, to a large swath of the buying public. You're basically saying you're spending all this time to list items to target one dude. You may want to complement this with some "loss leaders" like shirts or ties to drive traffic to your profile. Just sayin'.
Right now I'm using certain neckties as bait, so to speak. I'll list decent ties that I picked up cheap and run them at auctions starting at $0.99. This assumes I have a continuous supply of these, and ties aren't easy to come by around here, so using other items like shirts is a good idea.