I'm not planning on long term storage at this point so they may well suit my purpose. It would be very convenient to have a reliable screw-cap wouldn't it?
I'm gonna answer this with MAYBE.
At the moment, an expensive machine is required to apply a Stelvin-style cap. Will somebody develop an 'at-home' version? MAYBE.
The commercial cap has a 'tamper-proof' skirt. Would home users want this? Is it part of the seal?
Colour choice. If you have the caps from these commercial bottles...how many colours, logos, styles? Would be like the current shrink caps, trying to match labels, etc. My store has about 20 colours/designs of shrink caps, and there's many more that I don't carry.
Conversion. Sounds like you don't have any cork-finish bottles. The rest of us winemakers have oodles of 'em. Mostly, we recycle/return/... the screw cap bottles. In this environment will stores move into the equipment & supplies? Maybe large stores or in large cities.
Finally, do all screw caps bottles have the same size mouth, etc? NO!!!! I have about a dozen screw top bottles at the moment. One is non-standard, at least compared to the remainder. Arbor Mist screw tops are different again. Haven't checked Wild Vines bottles yet.
On the other hand, unless it's a Mateus bottle, a bottle designed for a cork will take a standard cork.
Steve