I'd also add: My Thiel 02 and Spendor S3/5 speakers. I've had the Thiels (fairly cheap monitors put out when Thiel wasn't yet doing time/phase coherent designs), since '92, and the Spendors since around 2001. The 02 was my entry in to good sounding speakers and they remain for me a sort of benchmark, the way they combine organic tone, with a chameloen-like ability to do any instrumental timbre, and an aliveness and palpability that brings everything alive. I still put them in to my system now and again, as I have for the past few weeks, and it still seems like they have things to teach me.
Same for the little Spendors.