What's the difference between a collectible coin and a bullion coin ?

-A bullion coin is mainly bought for its precious metal content. The lower the premium ( difference between the coin metal content price and the coin price ) the better bullion the coin. 

-A collectible coin is bought for its beauty, its scarceness, its qualities, etc. The premium is higher and very high sometimes. 

Some coins are made to be ranked in both categories. 

You'll find the collectibles coins in a particular category "OTHER COINS" on GOLDSILVER.BE but you can find some of them in other categories too.