>>273515471
If you don't intend to use it on its own then yes, it would be a waste. I did mean to mention that but got lost in my own post. 
Yeah, if you've no intention of playing the Quest wirelessly then the S is the best choice. 

>>273515589
66 does put you just a tad out of the ideal IPD of the S but surely 0.5 wouldn't destroy the quality. Having said that, I have not got an S, I cannot confirm. Hopefully someone else can.