His arguments are succinct against such foolish conclusion that we have nothing to lose by worshipping god if unsure, and is defeated in it's very premise.
http://www.ebonmusings.org/atheism/wager.html
This paragraph is key to the defeat, and powerful:
The first and most serious objection to the Wager should be immediately obvious to anyone who sees it. It argues for belief in a god, but it doesn't offer any advice on which god. There are hundreds, if not thousands - how can I tell which one is the right one? (" The Cosmic Shell Game " covers this topic in more detail.) Blaise Pascal was a Catholic and used the argument he concocted in favor of Catholicism, but today the Wager is most commonly used by evangelical Protestants. However, it can just as well be employed by members of other religions. Muslims can tell Christians that by worshipping Allah they may gain entry to a Paradise where they will be waited on for eternity by seventy-two dark-eyed virgins, whereas by rejecting him they run the risk of winding up in the Islamic Hell. Zoroastrianists might retort that Ahura Mazda is actually the one true deity, and those who believe in him and not Allah will get their heavenly reward, but those who reject him will be sent to a fiery damnation. The Hindus might interrupt and argue that the rewards for believing in Krishna are great and the dangers of rejecting him equally great. A Buddhist might gently correct all of them and point out that we can gain the bliss of Nirvana by following the Eightfold Path and practicing Zazen meditation, so why not try it - considering that the alternative is to be reborn as an animal, a hungry ghost or a damned soul? At this point the ancient Greeks might jump in, warning of the dire punishments waiting in Tartarus for those who reject the authority of Zeus. Meanwhile, while all this bickering goes on, the Nez Perce Indians sit off to the side smiling secretively, content in the knowledge that this world will end on the morning of the third day and we are living in the dreams of the second night, and that by believing this they stand to gain rewards none of the others could even imagine.