I see your point and don't necessarily disagree -- I've been kinda thinking the same thing -- but there's a lot of life left in it yet I would think.
There are also those of my generation and later for who these were our first cars or cars that we ended up with since they were so relatively cheap at the time.
Mind some of them have never been cheap enough; I remember an E49 for sale for $20,000 when I was 17 which was too much then and the price just kinda kept outpacing me.