a collection from my grandfather (around 1970 to 1975 - it was sitting in a closet for many years) that died in 1964. I was hooked on sight. After the USPS started making PB's that were the entire side of a sheet, I stopped collecting new issues and limited my collection to pre-1964. I was a kid, and could not afford to buy all those stamps. A PB of 4 plus a single was doable, but a strip of 20 plus a single, at a time when their # of issues was going up each year (well, it SEEMED that way, I don't know if it was actually true), and at a time when they were coming up with 50-design issues (2 full sheets - one for the PB collection, and one for the singles collection), a new issue collection was simply not feasible. The USPS killed the Golden Goose in Mootermutt.
I have since given up these collections and have specialized in a few different fields: 1847's, 3c 1851's, and Xmas Seals. Lots of people start out collecting generally, then focus their energies and budgets. The trick is to get them started AND have the interest level at least compete with all the other pastimes that are available to kids these days. I was hooked before video games were invented. I play video games, but I ALWAYS go back to my stamps! If one is hooked on video games first (or so many of the other newfangled things available these days), one will probably NOT see stamps as their primary hobby.