I'll celebrate the day when I can do the same. I tried dropping them in September and profits went to zero 
Instead of dropping them completely, have you tried offering a more competitive price for bitcoin purchases?
http://www.bitcoinmoney.com/post/23551708288/discount-for-cash
Maybe if customers see they have a financial advantage in using bitcoin, they'll at least be motivated to learn about it.
Yes, I do offer a 10% discount when using BTC. I'm not really sure if that's enticed anyone to switch over though. The Paypal buyers seem entrenched in their Paypal accounts and are reluctant to explore other options.