I bought my Brother HL-3040CN when they came out near the end of 2009, just pulled up the counter for it:
View attachment 214629
Still tickin.
You print a lot more than me haha. I am on the same generic eBay toner cartridge I bought many years ago to replace the one that came with the printer. I love my Brother HL-2270DW!
Every time I install a Brother laser printer somewhere I know it's just going to work whether they print one page a month or 100 pages a day. I absolutely love them.