If you have free electricity and if the prices remain stable at where they are, I mean more than $450, then there's a chance you can get out with some nice profit in the next few months, but that too before halving, as nobody knows what will be the scenario after halving takes place...
There are chances that people might lose interest in Bitcoins, or might there happen something like a big pump that could take BTC to somewhere that will drag everyone's attention towards it again...

Well with the price 450 USD and having a Antminer S7 + a energy rate of like 10 cent / kW the ROI period is less then 120 days. It's a little bit high yes but 'doable' even more if you expect the price to rise even more.
But looking towards the difficulty that skyrocket big time see:
https://bitcoinwisdom.com/bitcoin/difficultyIt's very risky again. Therefore i wouldn't advice to buy mining gear right now.
Are you sure about those calculations?
Because if u are, then it will be profitable for me

so then I am very interested.
he forget diff, but right now a s7 can earn you a nice profit, and consumption is around $45 per month with 0.05, with 0.1 is double that
earning is $360, but the next diff jump will put us on another +10% or so, still plenty of room for profit
But difficulty jump ain't just one thing, halving is another and the price is the most considerable topic to be focused when it comes to mining, as buying for least BTC at higher prices might look good, but even if you get that ROI in BTC in 6 months and the price is slashed 50% down, then I guess it's double your wait to just gain your ROI in full, I mean the one will need to wait a year instead of the mentioned 6 months...
well halving is not tomorrow, plenty of room for profit, 7 months, plus you can always resell, s7 can be sold again at the same price at whch you bought it, unless the price of bitcoin skyrocket too much and you payed in bitcoin
but this is another story, better to pay in fiat your asic
Is that true what u saying about reselling? I am not sure because after several years, won't it get vroken or something? Also second hand is much cheaper then brand new.
Prety smart actually if it is true what u are saying.