Less than two years in the market, the smartphone that kicked off thin bezels and notches is nbearing its end of life as stock depletes. This means that you won't be able to buy new Essential Phones, nor would you really want to invest in what is essentially a discontinued product.
The Essential Phone is far from obsolete. The company continues to make updates available and might do so for one year. Essential's focus is no longer on this device but on whatever smart home hub they are planning on making. Essential Phone was a remarkable device and this writer's daily carry until an update negated the SIM unlock feature. I doubt we will see the likes of the Essential Phone PH-1 again.