Video games with head-mounted displays. Highly sophisticated simulation training for the military. In the 90s virtual reality became, well, more real more science, less sci-fi.
That said, sci-fi continued to express the dream nicely, particularly in one of the decade's defining films:
"If real is what you can feel, smell, taste and see, then 'real' is simply electrical signals interpreted by your brain." Morpheus, in The Matrix