The same study that found a big age difference increases the odds of divorce also found that spending a lot on your wedding doesn't necessarily bode well for the marriage.
According to the researchers, Andrew Francis-Tan and Hugo M. Mialon:
"As compared with spending between $5,000 and $10,000 on the wedding, spending less than $1,000 is associated with half the hazard of divorce in the sample of men, and spending $20,000 or more is associated with 1.6 times the hazard of divorce in the sample of women."
At the same time, the study found that having a lot of guests at your wedding predicts lower odds of divorce. According to the study results, couples with 200 or more invitees are 92% less likely to divorce than couples who don't invite anyone, The Atlantic reported.