It surprises me to hear BB replaces cables. As Steve said, I would need to look at what they replace them with first. Keep in mind a set of 4 ga battery cables runs about $25 for 6 battery packs.
As far as price, I have found some differences in the past. At the time both companies had the same service. They removed old, cleaned up compartment and cables, replaced new batteries (neither replaced cables). See this old post:
https://www.talkofthevillages.com/fo...146-post4.html
My set of T105s just crossed the 5 year mark. I can see quite a difference this year in their performance. Noticeable when you ask for more volts coming out of a tunnel or up a hill. Need to take the cart out for a test run and see how far it can go.