Overproduction only matters to me in terms of the price I'm willing to pay. Since my original collecting period was between 1987-1991, it's probably not a surprise that my favorite baseball card sets tend to be 1987-1991 Topps. I have all of the insert sets, send-in sets, wax box sets, promos, traded sets, debut sets, etc. These are the only years that I continue to purchase wax boxes, rack boxes, cello boxes, jumbo boxes, vending packs, and factory sets for. I continue to upgrade these sets over and over again.