An old desktop or laptop if you have will be enough. The important thing is to download the official wallet of Electrum from its official website because too many clones and fake out there.
Yes an old computer is good in a way that you will remove the wifi and bluetooth modules. Sparrow can also be used, it is a good bitcoin wallet.
Yeah, a total disconnection from the internet. IIRC, I've done this I think on my early days when I haven't bought yet my hardware wallet.
It's still realistic and the same questions will rise again when we're gone far and the prices are too much already.
How many people have $40 000 they can miss? I'd say 0.01%
I personally had about 70k in savings and spent 13k on 0.3 BTC. I was interested the whole year, but I was chasing the 10k low that we never hit.
I'm in doubt, whether I should buy 0.2 more or there will be a better opportunity.
I've seen a lot of people talking about that low and they'll start buying. But it seems that we're not going to see it anymore and this how the progress on this market is. We see higher lows every time the cycle is in and it's your call whether you'll buy soon before the halving or you'll wait a little bit longer.
That's your money so, spend them wisely.