As I recall, they wanted a committed number of buyers within a very tight timeframe, just a few weeks. I don't know how many people would have two grand to spare so handily so I wouldn't quite say they didn't get enough interest, not without qualifying it. I'd say they might have found buyers if it wasn't such a time-limited offer but I got the impression BP wasn't keen on the idea either way. 18mm is about as tight as I find playable. A 19mm SR5 was of big interest to me back then but there was no way I could have magic'd up the money so quickly.