Hmm good question. I debated doing this with my mage and decided against it for a few reasons:
1. It is such a pain to lvl enchanting...not too bad to get it up to 200s if u can solo instances and get greens (which you will have to do to DE high lvl stuff) but to learn everything...mats for rods, etc are expensive.
2. Expensive...yes I know all profs can be expensive but enchanting seems to be pretty crazy. You lose out on selling greens and once u can't solo instances anymore mats are hard to come by and killer expensive on the AH...I can't remember how much Gold I spent getting to 290...20+ G for 10 points sheesh...and yes you can sell enchants and you can rake in a lot on high lvl enchants but it's time consuming standing around org advertising...took me forever just to GIVE away enchants for tips just to make a little extra gold back from the mats I bought.
3. DEing and selling mats...lets say you have a lvl 55 green or even a blue and you get illusion dust or a shard...well you can sell the dust for 1-2 G and the shard for 4 - 5 gold...if you had of vendored it instead of DEing, you probably would have gotten the same or a gold or two less then selling the mats...unless you want to grind instances for drops it's not too efficient...especially considering how much you just spend to lvl your enchanting that high (time and gold). With the new DE min lvl enchanting requirements the price of mats will probably go up since there will be a higher demand (cry) so this point may be invalid (but countered by the fact that you will have to spend more to lvl...)
Sooo yeah DEing your soulbound is cool...seems less wasteful then just vendoring but a lot of effort for an extra 1-2 gold. The bonus of being an enchanter tho is of course all the scooby enchants you can give yourself the second you get that new piece of armour...and selling high lvl enchants.
That being said, if you have a green or something that just won't sell and you want it DE'ed, send it my way and I'll mail you back the mats. If you want any enchants, post me and I'll let you know what I can do (my best is +25 agility to a 2H wpn...cant do the 1H yet tho).
My opinion is to keep skinning...but that's just me...I'm bitter at how much I have to fork out hahaha but that may change once I start making some of that money back
But just to DE??? Nah I don't think it's worth it.