I change filters at oil change midpoints, and keep magnets on the filter bottom.
Most cars are not driven in "extreme service" anymore, requiring 3k oil changes, anyway; but if you think oil is cheap, go for it!

This fact is being advertised recently with a "long distance" motor oil.......probably when regular oil will last anyway.
In the 60's a motor was trashed at 100k. I've seen Hondas with over 1/4 mill
on the odometer, so our metal technology has improved.-Bob

I use synthetic in my 69 Nova, though.....