If you think this is a premium domain then clearly you don't understand what 'premium' means. But anyway can you point me to a list of domain names that have sold for more than $1000 that end in .review? I honestly don't understand why you think it has any value.
I am not that fluent in English
I though "premium name" means "special name"
Anyway
As for your question
I think people would buy it because it fit's SEO Keyword research on google
4Products.review Keywords are : Products and review
Reviews are in high demand, just check out these stats :
Product Reviews - 110,000 phrase searches/month
Book Reviews - 246,000 phrase searches/month
Hotel Reviews - 246,000 phrase searches/month
Customer Reviews - 201,000 phrase searches/month
Laptop Reviews - 165,000 phrase searches/month
Car Reviews - 165,000 phrase searches/month
Tablet Reviews - 165,000 phrase searches/month
Restaurant Reviews - 165,000 phrase searches/month
Resort Reviews - 165,000 phrase searches/month
Mattress Reviews - 165,000 phrase searches/month
Phone Reviews - 135,000 phrase searches/month
Bike Reviews - 110,000 phrase searches/month
Consumer Reviews - 110,000 phrase searches/month
Printer Reviews - 110,000 phrase searches/month
I guess these searches could be enough reason for anyone to buy names with this domain
That what i think
I would love also to hear your opinion at these names if you will
b0ka.com
excitedbirds.com
8y35.com