You can print out proof that it sells for less than the ARV and make a case to the IRS if audited - I think I did this with a trip I won years ago and the lower "real" value was accepted.
Congrats! I agree about the inflated ARV's, I'm doing the TCL Ultimate Gameday Upgrade Sweepstakes and they list their 98" TCL TV Model 98QM850G for $11,999.99 ARV but Amazon and Best Buy sell it for $5999.99.