that's the beauty of

that's the beauty of (something)

That's the benefit or positive effect of something; that is what's appealing or satisfying about something. A: "I'm feeling a lot better after taking those few days off." B: "Well, that's the beauty of getting the rest that you need." That's the beauty of games like these—you can play them anywhere, anytime, with anyone.
See also: beauty, of
Farlex Dictionary of Idioms.

that's the beauty of

This is the most satisfactory feature of, as in And our vacations fall at the same time; that's the beauty of working in different law practices . [Mid-1700s]
See also: beauty, of
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • all for the best
  • a slew of (something)
  • a slue of (something)
  • a/the feel of (something)
  • (I) wouldn't (do something) if I were you
  • a straw will show which way the wind blows
  • a crack at (someone or something)
  • all right
  • (you) wanna make something of it?
  • a thing of the past
References in classic literature
"Shoes in your pocket - that's the beauty of pumps!" he whispered on the step; his light bunch tinkled faintly; a couple of keys he stooped and tried, with the touch of a humane dentist; the third let us into the porch.
Anything can happen in this game and that's the beauty of Speedway," Schlein said.
'There's no life manual on how to be a mother and I'm glad that we all can work our ways as parents differently - and I think that's the beauty of motherhood.
"That's the beauty of the food optimising eating plan; nothing is off limits and you can still enjoy your favourite foods and reach your dream weight.
"That's the beauty of this time of the year; the games come thick and fast.
'That's the beauty of PH as everyone can have and voice their opinions.'
But, that's the relationship we share and that's the beauty of that relationship so much is said without saying much at all.
"She is still kept alive in this franchise and that's the beauty of it - she lives forever in a sense."
Cook told BBC Five Live Sports Extra: "We had the side that was capable to beat Pakistan here but that's the beauty of a four-Test series.
That's the beauty of finishing in the top six, you can start planning and moving on.
That's the beauty of this team, it has great spirit about it and great determination to really dig in.
It sounds too good to be true, but that's the beauty of it.
John Bishop himself started out at a gig exactly like this, and that's the beauty of it all - you never know just what comedy gold you might find on the night itself.
"But he's still a maverick, and that's the beauty of him.
That's the beauty of playing a game like this against Ireland so close to getting on the plane.