I suppose that for dealers who would be reluctant to tape up a new club like that, would be to buy the demo. Granted its not virginal, but thinking of the number of hits a club has in it in its life time, the demo probably has 20/30 hits on it. Tell him you want the demo, that way you know what your getting, and ask for a discount for used. I also would think that taping up the club like you suggest, could also change its characteristics.... just my opinion.
Here is some interesting information regarding shafts...
YouTube - More of the Golf Show BANNED from TV