Cheap datacenter proxies start below a dollar per IP when shared, and around $2 per IP when dedicated, based on the entry prices in our database. Webshare has the lowest datacenter entry price in this comparison, and it also runs a permanent free plan with 10 datacenter IPs.
Other entries, as stored in our data: Rayobyte from $5 for 5 shared IPs, Bright Data from $14 for 10 shared IPs, and Oxylabs from $30 for 30 shared IPs. Compare like for like. A shared price per IP and a dedicated price per IP are different products, and the table above shows a Formats column so you can see which is which.
A price per IP also hides the rest of the plan. Check the minimum pack (Webshare and Decodo sell in blocks of 100 shared IPs, Oxylabs in blocks of 30), the number of countries and subnets, and whether concurrency or thread limits apply. The cheapest block is a poor deal if it only covers one location and you need three.