There's usually always two sides to every story or topic... here in regard to pricing, on the one hand pricing isn't going to be the same everywhere throughout the country. What a boat sells for in Florida isn't likely going to be what it sells for in the northeast, and what they sell for on the east coast likely isn't going to be what they sell for out here on the west coast/PNW area. A great example would be the boat that I purchased, in that I bought her for $26.5k back in Maryland and 3 almost identical boats have sold here in the Seattle area during that time for $55k-$65k. So, just because a boat sells for say $100k in Florida, that doesn't necessarily mean it's a $100k boat everywhere else.
That being said and on the other end of the spectrum, there are quite a few Grady White 330 Express boats for sale online currently for that price range, similar condition, motors, etc... 28 in fact, and over 57 total at least on the BoatTrader.com website. As well as a good deal of those boats seem to have a "Price Drop" flag or notification by them, which would make me think that the used 330 Express boat market seems a bit overly saturated at the moment. To the OP... it's your boat and you can list it for whatever price you'd like to. I'd highly recommend adding some pictures on here as well as add it to one or more boat sales websites like Boat Trader, or something similar, as this website doesn't always generate a ton of traffic on it. Or, you could always make a Craigslist ad or something similar, post the link from there onto your post here for those that wish to see the pictures, as you're pretty limited to the size of the pictures that you can add on this website. Either way, good luck with the sale and hopefully you get the price you want for your boat.