Indeed, Marc was a special breed. I called him about 10 years ago to discuss amplifiers and we decided that an integrated 250 would be a good choice for me. Without a credit card, or identification he sent me the app to try for 30 days telling me that if I didn’t like it I could send it back (110 lb beast) based on one call
who does that now without a prior relationship
. Needless to say I still have the app
I wish Mark the very best in his retirement.