RStevens: In VTSI's case, it wouldn't be a scam. But the perception in pinksheet land is when someone announces a buy-back, it's a ploy to get you to buy stock when they never intend to buy anything back. I've never seen a pinksheet company buy back any shares after announcing one. That's not to say some haven't, from what I've seen it's rare.
It seems Ferris is content with the current PPS and will only buy back if there's a significant collapse which could hurt the chance of uplisting, IMO. For the long term, the cash could be used for better things (e.g. acquisition). Given the current float of 13.7M, they couldn't even afford to buy 5% at current PPS with what was authorized (up to $1M IIRC), let alone 10%.