I always think a lot of it is down to money despite the excuses. When it happens without a complaint even more so.
Spot on Vince! I think people are getting a bit more choosey as to how and where they spend money.
Rather than part with £20 Mrs Smith will happily put up with slightly grubby windows for another month or so.
As and example: My car badly needs a clean. I shop at a big Asda and there's a car cleaning service while you shop. It's £12 in and out, and they do a good job so it's not even expensive.
I was up there yesterday afternoon. Did I get my car cleaned?...Nah!
Why?
Because I'm Mrs Smith...!!