Arguing that Manhattan is expensive therefore PV doesn't work is like arguing Manhattan is expensive therefore agriculture doesn't work.
https://www.zillow.com/homedetails/0-Ward-Loomis-Rd-Oxford-N...
(~214 miles from Oxford NY to Manhattan by road)
(search in Zillow by county)
Also, the cheapest land I found was 4k/acre, still well above pfdietz’s estimate.
Arguing that Manhattan is expensive therefore PV doesn't work is like arguing Manhattan is expensive therefore agriculture doesn't work.