Since they know the true value of the box they don't bother with a software upgrade but just send you a new unit for that price.$290 for a software upload. That is what the "upgrade" is. Simply newer software. And what does the newer software do? It appears to delay by some fraction of a second the audio response to certain radar hits. That is all folks. Slow down response to quiet the falses.
How does that make you feel? Tells me Mike Valentine wants you to buy a new $400 unit instead of supporting his customers.