Why land is being sold at throwaway prices

There seems to be a suspicious trend whereby prices of land in satellite towns that surround Nairobi are nose-diving. My intention was to apply for a development loan from my Sacco and buy a plot in the second quarter of the year before the Coronavirus pandemic struck. I had already identified a plot in Syokimau and negotiated the price with the seller, but resolved to put the purchase on hold following uncertainties that would arise from the pandemic. Last month, I was shocked at how prices of plots had fallen in the area leading to suspicions whether there were sinister games played by the agents. I have heard from colleagues and friends that similar prices of plots have fallen in areas like Kiserian and Kiambu among others. Is the experience similar in the West?

Simiyu, Nairobi