$20 mother board and 15 minute of $50 / hr tech
vs
$0.40 cap and 45 minutes of a $50 / hr tech
Replacing the cap might not actually be a win. Would need to know more about the actual hardware costs, as well as how often swapping 1 cap really fixes the problem (like, why did it blow to begin with? Will it just blow again in 3 days?)