Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Battery review

I bought the Tyco Nitro Dozer for my son at Christmas about 3 or 4 years ago. I was very annoyed when I discovered that it did not include the battery, and I refused to buy one subsequently. We now have a renewed interest in RC vehicles, and I'm reconsidering. However, [$$$] does seem like a lot, particularly since only one of our vehicles can use it.