I started reading and collecting comics in the 70s, and I have a natural focus and nostalgia for BA. I kept up with new releases throughout the 80s Copper Age and 90s Modern Age until several years ago, and again with back issues, raw and slabbed, it's been primarily BA and with easily a 95 % plus bias this way. I don't really need much that was published 1980 onwards and I'm not interested in paying nosebleed prices for older pre-70s material when I'm happy enough with reprints. Even though I read stories from all Ages, I put 70s books first if I'm thinking about buying originals.