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Explain Something About Litecoin, Bitcoin, and ASIC Units.. First off, kh/s = kilo-hash/second, right? and 1000 kh/s is 1 mh/s, and a 1000 mh/s is 1 ghs? The rest of post assumes this is right. I'm looking at the ASIC units on [this page.](http://www.bitcoinx.com/bitcoin-mining-hardware/) I know the difficulty for btc is absurd, so these units are needed. I also get that ltc is supposedly "ASIC resistant".. Whatever the hell that means. Onto my back of the napkin, or screen of the Galaxy SIII calculations. The cheapest ASIC on the first linked page will cost $149 USD. That unit has a mh/s of **4,500**; as an ltc miner, no small peanuts to me. Using [this calculator](http://www.alloscomp.com/bitcoin/calculator) I've deduced that this very cheap ASIC would make me *51 dollars USD an hour**, **358 dollars USD a week** , **1,555 dollars USD a month**, and over **18,000 dollars USD a year**. ...So why aren't people doing this? I get that as the value of the currency goes up and more miners mine, the difficulty will increase. But then what's stopping a huge company from buying three of the [BFL BitForce Mini Rig ‘SC’'s](https://products.butterflylabs.com/1500gh-bitcoin-miner.html) and skyrocketing the difficulty (thus destroying the currency)? Lastly, even with ltc's "ASIC resistance", couldn't a single ASIC destroy the currency? Does resistance in this usage mean "more difficult" or "impossible"? I feel like I shouldn't be mining if I don't understand this stuff.. Guis. Guis halp.

Explain Something About Litecoin, Bitcoin, and ASIC Units.. First off, kh/s = kilo-hash/second, right? and 1000 kh/s is 1 mh/s, and a 1000 mh/s is 1 ghs? The rest of post assumes this is right. I'm looking at the ASIC units on [this page.](http://www.bitcoinx.com/bitcoin-mining-hardware/) I know the difficulty for btc is absurd, so these units are needed. I also get that ltc is supposedly "ASIC resistant".. Whatever the hell that means. Onto my back of the napkin, or screen of the Galaxy SIII calculations. The cheapest ASIC on the first linked page will cost $149 USD. That unit has a mh/s of **4,500**; as an ltc miner, no small peanuts to me. Using [this calculator](http://www.alloscomp.com/bitcoin/calculator) I've deduced that this very cheap ASIC would make me *51 dollars USD an hour**, **358 dollars USD a week** , **1,555 dollars USD a month**, and over **18,000 dollars USD a year**. ...So why aren't people doing this? I get that as the value of the currency goes up and more miners mine, the difficulty will increase. But then what's stopping a huge company from buying three of the [BFL BitForce Mini Rig ‘SC’'s](https://products.butterflylabs.com/1500gh-bitcoin-miner.html) and skyrocketing the difficulty (thus destroying the currency)? Lastly, even with ltc's "ASIC resistance", couldn't a single ASIC destroy the currency? Does resistance in this usage mean "more difficult" or "impossible"? I feel like I shouldn't be mining if I don't understand this stuff.. Guis. Guis halp.