Doesn't seem like a crazy price at all. If you look at what it would cost you to perform those upgrades. You have to figure that boat has at least $6-9k invested in it. Installing a stereo is pretty easy and can be done relatively inexpensively if you choose.
I have a 96 200 VRS and it's a great boat somedays I do wish I had a larger swim platform but the fact that it is a true 20' boat and it fits in my grarage without any hving to remove a platform makes up for it. The porposing issue can be taken care of by properly distributing the weight on my boat and I normally don't experience it until 34-36 mph and I rarely go that fast.