Mantra on Jolimont hotel manager Nathan Copsey will be barracking loudly for the West Coast Eagles in Saturday's AFL grand final, not just because he's sick of seeing Hawthorn holding aloft the Premiership Cup, but because an interstate team in the final means a massive spike in room rates.

"We normally charge $150 to $300 a night, but this weekend it's two and three times that rate," he told the Weekend AFR.