I beleive that is correct as I do that to, to show what I paid for them. Many of my vintage cards show 1 cent as I bought them when in school, elementry school.
My prices do not effect the card prices, as when I started I check and looked to see that they didn't.
. I take it as a way to show what I paid for them. I keep track of stocks buy and sell prices so why not cards. And to me this is just a hobby, not a living.
Robert
“It breaks your heart. It is designed to break your heart. The game begins in the spring, when everything else begins again, and it blossoms in the summer, filling the afternoons and evenings, and then as soon as the chill rains come, it stops and leaves you to face the fall alone. You count on it, rely on it to buffer the passage of time, to keep the memory of sunshine and high skies alive, and then just when the days are all twilight, when you need it most, it stops. Today, October 2, a Sunday of rain and broken branches and leaf-clogged drains and slick streets, it stopped and summer was gone.”
― A. Bartlett Giamatti
robertkimble.us/tradingcards