Rare? That's one of the oldest BS line In the world of sports card collecting. I should know.
You see, I used to collect baseball cards during the 90s but got out of it soon after. Nowadays they're not worth collecting as they used to. Why? Too many baseball card companies flooding the market. The only cards that are worth anything are the chase cards.
You do have a nice set of cards but by no means they will hold their value for long. Baseball card collecting, be it football, hockey, basketball, is like playing the stock market. Values will climb one minute then crash/depreciate the next depending on the player. Autographs fluctuate the same way depending on the demand for it.
Remember Brian Taylor's rookie card back in the early 90s? He was a hot seller and a must-have. Now his card is worthless - probably a nickel at best. Even Cal Ripken's Topps Traded Rookie card was highly sought after even to this day but not as expensive as it once was after being inducted into the HOF.
I should know because I played the baseball collecting game far too long. That's why I stopped collecting before I got married in 1994.as I mentioned before, too many card brands coming out and flooding the market. Topps, Fleer, Fleer Ultra, Topps Stadium Club, Donruss, Bowman, Topps this, Topps that, who knows what other gimmick special chase card company is out there now. It got so sickening and confusing to figure out who's got the better looking cards, limited run collection. I don't see baseball card collecting is as popular as it used to be. Baseball card packs are getting ridiculously expensive ($5 or more for a 8 card exclusive special edition pack) for the average collector. Some collectors peek by looking for that elusive chase cards in stores like Walmart or Target. trust me, I know how to do it and and how to tell by sight and feel. I've seen other people do it.
I laugh because I know what they're doing and I let them know I'm aware of their tricks. It embarrasses them without fail.
Let's not forget about forgery and fakes. There's plenty of them out there and that's a huge problem too. Fake cards with fake signatures do happen quite often.
A strong word of caution when buying wax packs from the 50s - late80s, early 90s. Look on the back of them. If the seal looks tight, most likely the dealer cherry picks the superstars/rookies and replace them with commons. I know for I got burned by one dishonest dealer in my area. I got word from other collectors and they too got burned by him as well.
Back to how they seal their packs tight. Dishonest/greedy dealers carefully unwrap the pack, cherry picks the desired cards and replace them with common cards. They then fold it back and use a simple clothes iron to reseal them. Clever? Absolutely but the practice is out there.
My advice, be careful and only buy from reputable dealers. Pick up a Beckett's price guide at Barnes and Nobles or baseball card shop. look around and see what they're selling it for. Talk to the shop owner, get to know him. Ask questions. When looking to trade or sell, do not, I repeat, DO NOT expect to get face value of what the current market for that card is. The shop owner has to make a profit too. Negotiate a fair deal. Maybe package deal can be worked out or a trade up for something else.
I wish you the best of luck. I wish I can go back to baseball card collecting but my confident level with the industry is non existent. Why? One simple word: Greed.