Posted By:
peter chaoCharlie,
If you are already planning for the next 30 years, you are already way ahead of the game. I have trouble planning for the next 5 years. 
The thing I love about vintage cards is that you can always sell some cards in order to obtain cash so that you are able to collect the cards you really want. Also, there are some dealers that will give you layaway plans if you are a good customer of theirs.
The best of luck to you in building your collection.
Peter