i wish i was as lucky as you! failed to aquire any D3 from bitmain, was sold out each batch so fast i didnt stand a chance..Interestingly thou it's just the last 3 batches of L3+/D3/S9 that has sold out instantly. I got my order in June. For more then one week they didnt sell out, they had S9 and L3+ for days and weeks available.. Now all of sudden everything they have is gone the moment they release it, really funny when you think that roi is so much worse today (when shipping in october) then it was for the first few batches..
I wish you the best of luck and hope you enjoy the experience, i started mining more serious when KNC released their Titan, and upgraded now to L3+
It's been quiet the ride i'd say, but it was all well worth the initial investment, i hope you have a similar experience, you certainly going to have some hashing power to direct.