I would guess virtually none nowadays. More of them probably would if they were getting close 120% of the peg value created by DEC Bonds. That would be the hope of burning up most of the DEC available in game, but who knows? There are a fair amount of reward cards I would guess that are close to sale inside of that sweet spot if the bonus amount were indeed 20%, that of course would be the gigantic factor in all of it.
RE: SPS Flywheel and How to Get There