Namecheap And Bitcoin – A Review
cryptojunky.com
cryptojunky.com
Fortunately, most Bitcoin vendors actually do accept transactions without waiting, and I've only heard of SatoshiDice successfully being defrauded (they've since added various defense mechanisms against unconfirmed transaction double-spending).
The appeal of a service like Bitpay of course is that it converts that Bitcoin into fiat currencies, such as the USD, without the vendor having to deal with it. I agree that a zero or single confirmation system could be implemented by a vendor such as NameCheap. However, it would be more costly and time consuming than their current use of Bitpay.
A lot of people mention the 6 confirmations requirement as a serious inconvenience of Bitcoin, when in reality, a lot of the time it is not necessary at all.