I am an affiliated researcher at the Aarhus University Cognition and Behvaior Lab (http://bss.au.dk/research/research-labs/cognition-and-behavior-lab/).
We have some very good resources, but have also been looking into new and emerging gear, including high-end mobile EEG solutions (we're running comparison studies with cheaper commercial versions versus lab-grade stationary hoods) and fNIRS, but we don't want to devote >80.000 euros to equipment we might only use once or twice.
This leads me to wonder:
I imagine visiting to borrow labs for a study is easy, as long as equipment and facilities are unused anyway, and someone is ready to play host. There's a potential gain for all involved in visiting talks, co-authorship, networking, new co-funding opportunities, etc.. Shipping expensive equipment around would be more tricky, and require some kind of legal arrangements and insurance.
I am mostly interested in equipment and techniques for experimental psychology, cognitive neuroscience and behavioral economics, but the question is a general one.