Anyone price motorcycle batteries lately?

I about had a heart attack when I found out a battery for my sportster will cost me more than I have spent on any car truck van or tractor battery I have ever bought in my life. And like 1/4 the size.... I can't find one for less than $115. My last battery I bought for my Durango was like $85. What makes these little batteries so damn expensive?
I probably won't be riding much more this year anyways and this ridiculous price has me thinking about parking it early for the season/ as if I buy one now my warranty on any new battery I buy, will run out of time while snow and salt season is here.
I haven't been riding it to work since morning temps are in the high 30s/low 40s
I had it out last Saturday and started like always.
I went to get on it yesterday and not even a click. And after all day and night on a slow charge it had a whole 5.6 Volts in it. Took it to work and put it on my tester and it has a whole 4 cca left in it.
You have a Rural King around you?
They beat the pants off anyone around on battery prices.