It’s freedom, and the money to actually do something with it.
You don't have to shell out money for three extra major presents a year.
By the time you're in your 30s (and no matter your gender), you can't really get away with not buying reasonably nice things for your SO's birthday, Valentine's day, and the Holiday season. Every year you spend single means less worrying about how you're going to pay off the credit card bill for the surprise big screen TV.
Via giphy.com
You get to pick your own mattress.
One of the best parts of adulthood is being able to finally afford the mattress of your dreams. Not having to sleep on a mattress that you hate because your SO has "back issues"? PRICELESS.
Via imgur.com
You can take a job anywhere on earth without making someone else move.
Moving somewhere for your dream job might mean your SO has to move away from theirs. Having to take another person into consideration might mean passing up an important job at a critical time in your early career.
Via giphy.com
You've had time to experiment and figure out what you like sexually, and you don't feel guilty asking for it.
The rest of your life is a long, long time to spend having only one kind of sex. The longer you stay single, the more chances you have to experiment and figure out what you like — which will make you better able to find someone who likes it, too.
Cartoon Network / Via giphy.com