Dragonminers 1TH (the ones that cryptx are buying now) are sold for X BTC now. (+shipment +vat if you are outside of China)
Delivery in 3 days in China. They have units in stock.
1 TH cex.io shares cost 9.1 BTC.
If I want to invest in miners I go with dragonminers.
I am based in China and can ship them to you if you want some.

Whether or not Cryptx shares are overpriced I do not know.
2 GHs per share of 0.067 is three times the cex.io price.
Even if we were fully deployed the shares would only be slightly cheaper than cex.io shares.
That being said... it is a completely different story with the reinvestments coming in and the fact that this is a managed mining fund. Also we are still covered by the bitmine customer protection plan. That means they should deliver considerably more Thashes to us once they deliver.

If you are looking for lower hosting cost: Chinese electricity is only 1.5 RMB per kWh. I can also host those dragon miners for you along with my own miners. But you maybe shouldn't do that. (Right I am terrible at marketing.)

If you think about it:
Even the dragonminers won't make a reasonable ROI at present BTC prices and difficulty development.
My gridseed scrypt ASICS probably won't ROI either. (I can ship/host those to/for you too if you want by the way.)
The only thing that now makes sense is to invest $ or € into BTC.
Then when BTC prices climb to 1000 $ again which they will in no time since China is not stepping down on BTC you can write me a pm to see what I can ship to you then from here at what price.

I am also invested in the petamine because I like to be part of this thread and I think that the share price will go up although that might be unreasonable.

PS:
I realised today that I had a wallet with some Blackcoin lying around that increased 20 fold in value.
Obviously I sold them immediately before they crashed again later today.