KEM vs Copag plastic playing cards
Both KEM and Copag brand of playing cards are amongst the top brands in the world. Both are 100% plastic playing cards and offer very similar benefits.
KEM and Copag are highly durable cards and can last you for a long time. They are quite bendable and jump back into shape without leaving a crease. Both KEM and Copag are also quite washable, so if you spill your cola on them it doesn’t mean the end of the card deck. The design on them also fades less easily. Overall, making it difficult for people to identify cards, which is the key for a long lasting deck.
In terms of looks, the print on Copag playing cards are less sharp than KEM playing cards which are very well defined. They come in similar designs and there is hardly any difference.
Playing with 100% plastic playing cards means they are very smooth and for someone used to playing cards made from paper it can mean some spilling while shuffling the cards before they get used to it. Although many prefer the smooth finish and feel and the ease of dealing, a little amount of roughness is desirable. In this regard Copag playing cards are a bit rougher and feel more like paper cards than KEM playing cards.
You can buy Copag playing cards for around $6.5/deck which comes out to be cheaper than KEM plastic playing cards which you can buy for around $7.5/deck.
As of now, KEM playing cards made by the United States Playing Card Company are more popular and well known than Copag playing cards. However, you will find many card enthusiasts (including poker professionals) vouching for the superiority of the Copag brand over KEM.
Overall there is little to choose between them for a casual player. And indeed if you play very occasionally (less than once per week) or really don’t care about marked cards that much then save yourself some money and buy a cheaper brand of playing cards. If not, the only way to decide is to actually use both cards and decide based on preferences.