Even if it was "only" $20k per year -- for ten years -- I don't understand how any male can spend $20k for clothes in one year, let alone for ten years in succession.
A decent off-the-rack suite begins at $400-$600. Suites for executive corporate environments, $1500+, easy. Shirts, $100-$200 to start. Decent dress shoes, $500 and up (usually way up). Ties? $75-100, bare minimum. Figure $2300-$2500 per outfit and you need enough of them to wear one every day.
In corporate executive circles, spending only $20k a year on business clothes would be the screaming bargain of the century.
Brad