Grand' pw is still a decent whack for lot's of people.
As a self employed Kitchen fitter, 0n average probably onlydo a 'bag 'o sand' about a dozen weeks each year. ( £6-£800 pw rest of time)
If I could be arsed to do the odd Saturday,a few privates & stay on site past the usual 3 pm finish, then could do £50k gross a year.
But for me, the ammount of quality 'Family time' I get (especially with the kids) is much more important than chasing a few more pound notes
Cheers