The fade on mine looked similar and I struggled to sell it for $1,600 in WI (12 months ago). Then again mine wasn't HUO, but I absolutely hate that term anyway. A machines condition "is what it is" and in this case it's tough to tell.
Anything around $2,000 seems to be a good value for one in good working order. +/- $500 for condition seems to be an acceptable range. The games that MikeS listed have all crept up in value, but are still among the best bang for your buck for a 90s era machine. Although, I would put The Shadow in the next tier in terms of pricing.