Bronze are as new as I go generally, as they were my off the racks grade school books. I more actively collect golden age these days, but I love filling in bronze reader runs. I'll occasionally read and release early copper too, as that transitional early 80's timeframe is when I began buying back issues (mostly earlier bronze and silver, from before my racks time, to fill in and read runs.)
Still have my Iron Man, Avengers, Defenders full sets, and my X-Men from 94-150; over time they hold up as my faves, but you could probably set me down for a quiet afternoon with any number of bronze runs and I'd read them and have a temporary new fave for a while.