Your profitability is pegged against litecoin - Is it the most profitable single coin out there? 

I did a quick compare to Doge here : http://bitinfocharts.com/comparison/miningtobtc-ltc-doge.html because Doge was brought up earlier in discussion.  Seems that as Doge seems to be a bit stronger than LiteCoin it may be a better benchmark for comparison. 

I realize you can't cater to every coin, but perhaps put a couple other 'big' ones on there and it could help sell your site better?