Hoffman Animal Hospital is the cheapest vet I've used in Rhode Island. I found them less inclined to suggest a lot of testing, etc. In a few cases, I actually would have liked more testing than they did. But I didn't feel like they were negligent-- maybe just more conscious of the cost-care balance.

I found them fine, though I occasionally found communication a little lacking (this is also true of Armory, which I switched to because they're up the street from me. Armory is significantly more expensive than Hoffman in my experience, but probably still cheaper than River for sure!)