It is dependent on way too many variables and personal preferences to say anything for sure. I have had quite a few of them, and I wouldn't say that they last seven times longer than normal Bicycles, but the stock is thicker, and they are of higher quality. I know it doesn't help when people say that you just have to try things on your own to know for sure, but in this case, that is completely the truth.
But, if you do want my opinion anyways, I think you can survive without them. They are nicer to perform with than to practice with (just because they look nicer). It is more of a placebo effect in my opinion. The name "Masters" looks cool, but I don't truly believe that the cards are that much better. I personally think that any Tally-Ho deck would destroy a Bicycle deck in overall quality.