Like one of these: http://www.aliexpress.com/item/PCI-E-PCI-E-Express-1X-to-X16-Riser-Card-USB-3-0-Extender-Cable-with/1609801987.html

IDK if all of them should be powered, or just the ones on the 1x PCIE slots?

im 21 have 5000$ i bought a miner with 5 GPU but i saw people with over 100 GPU and refineries. how do i compete

What determines bitcoin pricing? (ex: the current market for bitcoins is 16billions USD$. If someone were to buy coins until he spent 8billions USD$, does it means coins will be worth 50% more?)
Also is it better to buy, mine or rent a miner?


Thanks