✔ 最佳答案
A combination of things:
1) Memories
2) Guys never really truly grow up
3) Those toys have been known massively appreciate in value over time
4) While girls tend to blow a small fortune on stuff like clothes & shoes + various other things for vanity regardless of whether they need them or not and often get in a right mess with credit card debts, guys tend to be more frugal and some may see keeping their old toys as a way of saving money when they eventually have kids themselves (and probably also why guys often seem to end up with additional collections of stuff from normal collectables to random bits of wood that might come in handy for something one day).