Now you mention it, it sorta is; I haven't used eclipse, but I've never stopped putting all of my projects into a single folder called "workspace" in my home directory.
The main difference would be that all dependencies are also in this folder, instead of e.g. a maven or ivy folder located somewhere else. And a (suggested?) folder structure, not dissimilar to java's package structure, where you'd put your e.g. github.com/user/repo repository into $GOPATH/src/github.com/user/repo. I'm sure there's clever tooling or commandline wizardry that works really well with a structure like that.
The main difference would be that all dependencies are also in this folder, instead of e.g. a maven or ivy folder located somewhere else. And a (suggested?) folder structure, not dissimilar to java's package structure, where you'd put your e.g. github.com/user/repo repository into $GOPATH/src/github.com/user/repo. I'm sure there's clever tooling or commandline wizardry that works really well with a structure like that.