66010-97C MSRP is $149.95, if you paid more than that either taxes are too high where you live or the dealer is fugging you. The Deka ETX30L is the same battery as the 66010-97C.
I have a friend that rides a Yamaha cruiser.He took it to the dealer for carb work and a battery.They charged him 220 dollars for the battery.I could hardly believe he paid that much.
when my batt goes on my eg.. im going to put a $30 tractor battery in the saddle bag.. it has higher cranking amps and will last at least as long..will cost an additional $10 for batt cables but???