>>mroche+(OP)
Reading some of the comments here, this is only a significant point if your language/tooling makes building non-trivial (and/or slow). For example, for Go it is insignificant whether the source project provides builds because building is so straightforward, fast, and even cross-platform. A lot of Go tools don't ship builds because you can just `go install` and be faster than navigating a web UI, clicking a Download link, and saving it into your PATH.