Ltc difficulty has risen by 100 in last week or two so I am guessing it's the new stock out and people are mining away. By the time I get mine in sept, if he difficulty is 1,000,000 then at the current Ltc price that's still $7000 ish a year. I am guessing that each batch raises the diff by 100 so until sept that's about 6-7 batches away.
Please enlighten me if I'm wrong or you know how many l3+'s they are selling each batch.