It more profitable to just buy bitcoin whenever the prices go down instead of buying ASICs to mine bitcoin. As you have correctly pointed out, the chance of getting the money back of what you put in to get the farm set up and the breaking even point are going to be far off. Till then you would have to sustain the costs and hope that additional costs don't come up.
No, mining is different from buying BTC and profitability depends on their electricity rate if you don't have a cheap power rate and don't have technical skills then stop planning on mining because it won't be worth mining in the long term.
If you just buy BTC and hold at the current price it doesn't generate a profit what if the price keeps declinin it stays at the current price for almost a year or 2?