Noted evolutionary scientist Satoshi Kanazawa wrote a popular-science book called "Why Beautiful People Have More Daughters" in which one section is devoted to international travel for romance.
Kanazawa argues that for women, international travel is a perfect idea because women's market value comes from physical appearance and youth -- innate values which are universal. But for men, market value comes from social/cultural "ornamentation" rather than physical "ornamentation."
"...Such social and cultural ornamentation, however, presents men with one problem...: It does not travel well. Social and cultural ornamentation is, by definition, socially and culturally specific. Men cannot brag about their achievements in conversations with women unless they speak the same language. Yanomamo women in the Amazon rain forest would not be able to tell the difference between a BMW and a Hyundai or the difference between an Armani suit and a Burger King uniform, and their status implications; a Grammy or a Nobel Prize will not impress them at all. (Has any Nobel prize winner ever had massive head scars, indicating their experience in club fights?) Conversely, Western women are unlikely to be impressed by body scars and large penis sheaths. Signs of men's status and mate value are specific to societies and cultures, and they lose meaning outside of them."
"This is in clear contrast to women's status and mate value. Standards of youth and physical attractiveness, the two most important determinants of women's status and mate value, are culturally universal because they are innate... Men in preliterate and innumerate cultures without any concept of fractions or the decimal point will be able to distinguish between women with 1.0 and 0.7 waist-to-hip ratios. Yanomamo men will see that a Victoria's Secret lingerie model is extremely "moko dude" (a Yanomamo phrase meaning "perfectly ripe")..."
"If men's status and value are specific to their own society and culture, then they should avoid different cultures, where a completely different set of rules, of which they are ignorant, may apply. In contrast, women should not avoid foreign cultures... because rules applicable to them are cross-culturally universal."
(p. 176-177)
One exception: Married men should definitely travel, according to Kanazawa, because "mates are probably the only ornamentation ... men can display that is cross-culturally meaningful" -- in other words, women everywhere prefer men who are already paired to other women. Single men, however, don't have this advantage and can't advertise themselves cross-culturally very effectively.
It's worth noting, however, that Kanazawa himself is married to a Russian woman. He's a Japanese-American academic living in the US.
