Quote from: samsonn25 on October 07, 2014, 06:11:19 AM

Quote from: topdawg_swe on October 07, 2014, 05:49:30 AM

Can anyone provide a solid reason why to buy the S4??

I guess Bitmain won´t be selling the S3 or the S1 upgrades (I have some defective S1s) until they have sold their S4 mining farm...

The only competition now is the ASM Tube at $350 for 800 GH which is equivalent to $875 for 2TH but the electric costs are higher at 1.1 watts/GH

Asm tube will stop being profitable end of October

S4 will be unprofitable end of November

Pick your poison

There's also a question of availability, ASM tubes are only sold in batches of 10, which excludes small home miners right from the start. In USA there are two group buys which can give you an opportunity to buy only a miner or two, but for the rest of the world Bitmain has no alternative, they are the only manufacturer on the market delivering right now. That said, I don't believe buying any equipment including Bitmain's will ever return the BTC invested in them, fact that people are still buying only shows most of their customers recoup some costs by reselling the equipment or having access to unpaid electricity.