Ohhhh, I'm pleased my hubby isn't on here.
He's been banging on about the price of  stamps since before Christmas.
I would be interested to see if your logic worked though.

It appears the price of 1st and 2nd class stamps have risen this month.

£1:65 for 1st class and 85p for second class, that's almost a hundred % mark up between them. I stopped buying first class early last year and just send any mail 2nd class {for most people letter sending is a dying art} I just keep a couple of 1st class for anything urgent.

The way I see it is:- basically a postman sorts his letters out daily for a round, depending on the mail intake that day, obviously starting with the bulk "important" mail {1st class} then making up with junk mail {as that's their bread and butter} then 2nd class.

Now if everybody transfers their mail over, and just uses 2nd class stamps, then by design 2nd class becomes the "important" mail as it's now the bulk of his days work so in fact you should end up with a 1st class delivery using 2nd class stamps, and saving money.

I don't believe so O.C. we were in town yesterday and nothing. I think if  there was anything it would be in the D.T. tomorrow.

Marra is Scottish or a very old word of England I believe.
Means friend or colleague.
It's not Derbyshire slang  as I know of.