[Holden97]

I agree with what you've described. With some limited exceptions, I'm not clear on how using a corporation accomplishes something different than reporting poker income (AFTER EXPENSES) on a Schedule C.

The limited exceptions I can think of would be in the context of utilizing both the individual and corporate graduated tax rates (this benefit may be offset by the double taxation on dividends) and "tax-free" dividends from an S Corporation.

There are probably other benefits, so feel free to shoot holes in my view of things
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The other issue I wondered abut is whether legally you can play as a corporation, or are you really playing for a corporation? When I say "legally", I guess I'm wondering about specific terms and conditions for playing in certain tournaments.