1. Men seem to like dealing with things compared to dealing with people more than women do (on average). 2. Men know that women value their ability to provide.

1. Men seem to like dealing with things compared to dealing with people more than women do (on average). 2. Men know that women value their ability to provide. In other words, money/power/status/ambition makes men sexier (in the eyes of women). This doesn't apply to women (although you can make the reverse argument on why women spend more on makeup/clothing/skin- and hair-care.