I will keep this short and simple.
So I have got this really good opportunity to buy a plot in my hometown. The value for it is bound to increase in near future as per the locality and developments around it.
To buy it I would have to sell my BTC (not all but most of it). The question here is, would you sell your BTC given you were in such a situation ?
If not, why? (something other than speculation)
It is always good to divessift your investment instaed of putting all your money in one thing. As you said you will not have to sell all your btc to buy that plot, go for it.
You will still left with some btc which are good enough of you hold them.
You can always fall back on your real estate assets if crypto market goes in bear and you know need of cash.