As a BDA-2 owner who bought my unit with the early hopes of DSD capability down the road, only to find that would not happen, I had started researching other DACs until the BDA-3 "announcement" came out. But since I bought my unit over 1 year ago, I certainly don't feel cheated. That's technology and progress. I personally feel an "upgrade/trade-in" option is a fair approach, and hope Bryston pursues this path.
The angry tones in this discussion are unfortunate, but probably not surprising. James et al have deservedly enjoyed a cozy relationship in this forum, with mutual benefit. When a manufacturer's marketing perspective runs counter to that coziness, pretty much any position can fuel the conflict. I hope we don't toss out the good will that's been nurtured in this dialog.
And hey, what if the BDA-3 doesn't sound as sweet as the BDA-2? What will we do then