Not especially funny.
My brother and I had become a bit miffed about getting cold and wet in caves/mines by late '68/'69 and Dad had started buying Descent so I think there was an advert from Caving Supplies(?) cunningly using a scantily dressed female, so we decided a good use of pocket money etc, brother bought a thin (4mm?) unlined kit, me being a bit older with slightly more pennies bought a thicker, lined (fetching orangey yellow) version.
Kits arrived, kindly Dad muttered that he wasn't going to pay for them so we pointed out that we already had - so there, I don't think they were manically expensive.
No great problems with cutting, gluing, zip attaching and crotch bit with turn button attachments (think they had a specific name) , better still a friend at school was a whizz at sewing so I got all the joints neatly sewn, from what she said afterwards her boy friend wasn't too pleased with her, couldn't have been too damaging as they've been married for 50 years.
Brother's suit was OK but he did get through a lot of talc and so did pong a bit coming home from trips, mine lasted through university (only vaguely funny bit was the digs landlady misunderstood what a wet suit might be and though it was quite a risk wandering about in damp clothes) and for a while afterwards although the knees and elbows went through quite a lot of re-patching, eventually replaced with another kit which more less lasted until the late '80's. Then I grew up, moved further north and decided trundling over Munros and Wainwrights was more fun.
Jim