"Vintage" is the correct term when referring to equipment made in the glory days of electronics. "Old" is so worn out in society today, that a device that was released even a year ago is identified as "old," even though it's still a fairly capable device. So you can see where the confusion lies in that statement.
Besides, you're looking for a modern laser that will function with your older Macs (I am assuming one with a G3 processor, as anything less powerful will definitely not function with today's lasers). You can't run a Brother HL-2035 on a Compact Mac for obvious connectivity/software reasons, so the Mac you're referring to can't be from that time period.
Hmmm. On the Xerox website, the starting price is $349, so I wonder where you are getting your sources from. But still a nice laser, overall. Good luck with your search.