Yes, we spend a lot on weddings, but not as much (adjusted for income) as they do on funerals. In Ghana they spend 2.3x-9x the yearly median income[1] on a funeral. The median income in the US is $45,140[2], so if we were to spend the same amount relative to income on weddings as they do on funerals, that would mean our weddings would be $103k-$406k.

[1] https://remotepeople.com/countries/ghana/average-salary/

[2] https://fred.stlouisfed.org/series/MEPAINUSA672N