I'm not the person you're asking, but I maintain a number of scraping projects. The bills are negligible for almost everything. A single $3/mo VPS can easily handle 1M QPS (enough for all the small projects put together), and most of these projects only accumulate O(10GB)/yr.

Doing something like grabbing hourly updates of the inventory of every item in every Target store is a bit more involved, and you'll rapidly accumulate proxy/IP/storage/... costs, but 99% of these projects have more valuable data at a lesser scale, and it's absolutely worth continuing them on average.