Every place I've been around doesn't care if they're super current. Now that all the vendors are doing expiring certs, expired certs are still certs in the eyes of most hiring managers. "Oh yeah you know Jimmy is Cisco certified but I think it expired last year or something. We'll get him into update it eventually" is the general tone you hear from the managers. If the cert even matters, if you passed a test 2 years ago and it's $5,000 to stay "current" I don't think many managers care, if they care about certs at all. That's just one of those "oh, you have them, OK" items on a resume, like a bachelor's.