Thanks for the replies.
There are plenty of speculation threads about difficulty. Some say 10x, some say 50x. I am thinking somewhere around 40x to start with, and keep increasing as the months go on. As for shipping, no one has received one yet as they are scheduled to be shipped early November. Josh state a while ago that they want to have all pre-orders out by December (not sure if this is still true since they have more pre-orders) and eventually want customers to be able to order and the items be shipped out within the next day. I would guess if you pre-ordered now you would receive it sometime around January. Just a guess though.
Good to know nobody has received one yet, so there is no effect yet on the difficulty.
I will keep a spreadsheet of the difficulty every day. Once the products are being delivered i can see the effect.
It's not that long anymore until first shipments are sent out.
Hopefully I will be able to estimate the difficulty (and my potential profit) then when product would arrive.
I guess deliveries will be more consistent then too.
You need to look around the forum more. There's a hundred threads on BFL that answer a lot of your question. First off, the SC is up to 60 GH now, and if you put an order in today you'll likely not get it till early next year. I believe they're up around 10,000+ pre-orders.
As for BTC profit. Things are going to get messy once all this hits. Noone knows for sure, but we definitely know that the reward for blocks is going to get cut in half in the next few months, and that would knock your 13 BTC down to 6.5 BTC right away. Then once difficulty ramps up, it'll just get worse from there.
I'm not saying it might not still be feasible to do it, but spend some time, do some research and make an informed decision.
I'm trying to read up on the forum a lot..
If the current exchange rate holds anything above 2btc (preferably 5) a day would be acceptable. Do you think that will hold long?