I had one, very briefly, in the mid 1960s, when I dropped out of boarding school and became a cadet journalist for a provincial daily newspaper. I got it, I think, to copy the work of the staff photographer, who was at the time a Living Legend in New Brunswick, Canada, and who had a 3x4 Crown Graphic, which was stolen from his car. It couldn't be replaced, so he bought my 2x3 Speed. I then got a good secondhand Rollei TLR, which I still have.
As a callow youth I thought the Graphics were iconic, but in actual use I found them more of an acquired taste, to be matched with suits with wide lapels, unattractive hats (as all men conventionally wore then) and a cigarette endlessly dangling from the lower lip, liberally dispensing ash to the winds. The Living Legend photographer smoked 60 unfiltered Camels a day. He made it to 57 or 58 but then had to retire for health reasons, and died a few months later from lung cancer. Iconic indeed... His family offered me the Speed Graphic I had sold him, but their asking price was too high for me. I do wonder what happened to that camera. Likely long lost, or sold to a non-resident. American summer visitors to New Brunswick then had plenty of cash and knew the value of things. Many wonderful cameras were sold and went stateside.
I tried and tried, but I just couldn't bond with the 2x3. The rangefinder didn't suit me, the Kodak lens was too slow for my liking, the focal plane shutters were too noisy, focusing was a pain, and I hated having to load sheet film holders in the darkroom. A roll film back would have been the ideal solution for me, but on my pittance salary of CDN $35 a week I couldn't afford it. The Speed Graphic cost me,I recall, all of CDN $200 and cleaned out my savings. The good old days, ha!
The local photo studios all used the 4x5 Graphics but I thought they were behemoths. An established wedding and reception photo man had a 5x7 portrait Graflex which he used propped up on a small table, no less. The thing was like a load of cement blocks and would have collapsed any tripod. I once got to handle one of the 4x5 Graphics. The focal plane shutter mechanism was daunting and slow to work with. For me the lens shutters were the best way, but no studios had these at the time.
About ten years ago a friend in Australia introduced me to his collection of six Speed and Crown Graphics and kindly let me use one whenever I liked, with a Zeiss Tessar lens, a Graflok? Grafmatic? 6x9 roll film back for 120 (can't remember what these were called) and a ground glass focusing back. I shot many superb images with this combo, and realised how much my photo shooting style had evolved over the decades. Back in 2006-2007 I would have bought one, had I found one in good working order, but alas, Down Under they seem to be as rare as diamonds on the street. A lovely camera but a time warp piece, I reckon. I now occasionally use a Zeiss Nettar 6x9 folding with a Tessar 105mm 3.5, apparently a rare camera which I find somewhat fiddly to use, but it produces negatives ALMOST as good as the Graphic did. I still use the Rollei as well.
Anyway, my Speed Graphic memories.