Back in the day went to Vegas for a couple of conventions - boring business stuff, not one of the porn extravaganzas, if only
There was Silverjet & Maxjet business only
Problem is that they went under & the fares sky rocketed
Business was like £7k WTF so went Premium
What i realised was that i was sooo fcuked after nearly a week in Vegas that sleeping was no issue on the way back
Out like a light
On holiday trips have been in planes when economy pretty empty
Fold the arms up on one of the middle rows & there is a flat bed of sorts
Lay down a blanket a couple of pillows & a blanket on top, ta-da
Not much of a difference to 1st & staggeringly cheaper
Plus you ain't bothered by male cabin attendants mincing around & constantly asking if you want anything

The airlines used to run the flight crew stuff on seniority / long service basis
So women would be effectively penalised if they take a career break to have kids
IMO its business where there is the highest concentration of fit hosties
Cant remember when it was but you could sit at the back & smoke
Me & mates had so many beers the hosties gave up serving us & told us to fetch them ourselves
As with economy less than 50% full they knew they wouldn't run out
But they did mention that if we were wasted on arrival then we could be refused entry @ Passport Control & put on the next plane back
We'd have a bit of a chin wag with them doing some flirtin in the galley at the back
Knowing that a good few of them are utter filth
Not on the flights, but I've banged a couple of fittie 'Speedbirds'
As others have said, Premium Economy is a lot extra, for not THAT much more service or space. I've done it a handful of times when the extra cost has been reasonable, but when it's 2x or 3x regular Economy, I don't see the upside.
I've started to resume regular-ish flights to the US, and I've noticed that Economy cabins are still pretty sparsely occupied, with everyone in Premium, Business or First. All the more reason to fly Cattle Class.