The price of ASICs usually depends on the price of Bitcoin, and that's the whole secret of this market. ASIC prices are lower now than they were in early 2025.
But you're right that you need to learn to calculate electricity costs and profit. Don't forget about the additional expenses that may be needed for ventilation and security.
That I personally would attribute to FOMO. Most of them may see mining less profitable when bitcoin drops in price but I personally don't fancy the logic. Mining is based off SATs rewards plus solo miners barely run into profit especially in countries where electricity tariff is on the rise.
Regardless of you could stack a couple SATs before a pump it's basically gonna make more sense than rushing to buy chips when it's a bull run. I want to believe the only thing keeping solo miners sometimes is the hopes of one day hitting the block reward.