you have to have an angle (this is BTC related bear with me)
either
1) cheap ASIC (or other) Equipment in some manner. (way below normal cost used or new to have a shot)
2) and/or cheap Electric way below normal cost in some manner...
Myself I lucked out in the above number (1) from 2014 thru Spring 2016 ROI'd on equivalent hash of KNC Titan Scrypt Miners (1/2 new 1/2 used) was pretty modest setup.
Did ROI however did take like 1.5 years thou
AS to how this relates to BTC the LTC difficulty is less than 25% from Nov 2014 to Spring (or now) of 2016 ..thus long life to these units
and I convert 90% or more of LTC to BTC when I move coin and hold.
So (1) this year I found 7 NEW knc Titan Scrypt miners .....1 corporate default new in box and 6 from knc liquidation sale this summer at 1900 ave price per all 7 in total, each.
on (2) however I do not have an angle Summer electric rates are 14c kwh and winter rates are 11c kwh..so my electric sucks I make up for it by dumb luck in equipment.
So my point is you have to have one of the 2 listed above 1) luck and cheap equipment somehow (unicorn hunting) or 2) cheap electric say 4-8c in Oregon or Texas
or even better in China 2c kwh there I heard. Best of course is if you could pull off both at one time (maybe somebody has done that ..I'd prefer to hoard that kinda
luck so use it to become Natalie Portman's love puppet......just saying)
Sucks.both options or even one are long odds...but the only game around..it is one big friggin unicorn hunt at this point in time...add to this the massive desire the day after the equipment lands at your door a hope in your kool aid drinking heart for a massive price spike in your crypto of choice ..and it all makes for an 'interesting crypto life/drama as they say)
So right now with a month to go to pay off the summer stuff to be back at full ROI..I'm pulling in 2450 a month at 3100mh and 11c kwh elec rate at 3.83 usd LTC
I guess the third way is to be from China...be next door to a Hydro damn at 2c kwh electric and have some kinda Communist party clout to wrangle some permits for a wharehouse
and miners....damn hard for me to pull off at my age however