I think the game is less "worth it" than it was for the past several years, but it's still got some perks.

I do not travel much to accumulate miles. Most of mine have be gained through credit card bonuses and online shopping portals. There were some enormously generous sign up bonuses two or three years ago. Those have allowed me to fly in business and first class to Asia mainly for "free".

With most airlines requiring more miles to get where you want to fly plus fewer giant credit card bonuses makes the game more difficult. If you're willing to play the credit card game and can find the ways and time to do "manufactured spending" you can still rack up miles.

My personal opinion is that it was fun while it lasted but I don't expect to take as many free trips going forward.