I've had the one I stepped on for more than a decade
At last glance in my seam ripper caddy I counted 15 seam rippers, not counting the ones too short to stick up, ones in my sewing totes, ones by my sewing machine and several on the ironing board. One for a decade? Not going to happen for me. LOL I usually end up with at least one new ripper and one new rotary cutter every Christmas from guild parties. I belong to three guilds. I like the Seam Fix but the Fons and Porter's big red and cream seam ripper will do the same thing and it's all one piece.