2000 Cr-v many need new battery

I took it to Honda for the routine oil change. It was about 92 degrees
and the air was running right before I got in there.

He tested my battery and said it was around 320 and should be around
420. Original Battery.

I'm ok with changing it. Honda has a 100-month warrenty battery for
$85 installed.

Are there any other options worth looking into for batteries? I heard
interstate isn't very good and Sears diehard has gone down hill.

thanks

Kubie