When we purchased the catr the total with tax, tags, financing and a few upgrades, the price came out to around $50k.
If you mention the price new, everyone is going to assume sticker price. And almost everyone on this board knows that should have been around $30-32k, and even that is really irrelevant to the market value today. Inflating it to include tax, registration, financing costs (this is the first time I've every heard of any seller trying that) gives the appearance of deceptiveness to someone who knows pretty much what the original sticker price was.
The other part of this is your pool of potential buyers for such a uncommon and now unsupported (dealer network) car, may be from far away and they have to figure in shipping/retrieval costs. Good ones at a good price go quickly up in the Northeast. Inflated priced ones sit for a long time on eBay and Craigslist. I don't know about Dallas/Ft Worth market, but it's probably not as vibrant for Alfas as the NE. Anybody on this BB that's interested in buying an 164 is going to be a serious buyer. It's critical that you're completely upfront and honest about everything with the car. You don't need to pump it. A great car with a documented maintenance history will sell itself. Have the maintenance history, or better still, post the last timing belt change, if the AC system has been converted to R134, etc in your ad. The more detail you post in your ad, the more interest you'll attract from our BB members. Don't even think about posting "Serious buyers only" on this BB, as when I was looking I immediately dismissed those sellers as overpricing their cars and probably being generally a pain to deal with. I was
a serious buyer, and I didn't need to be lectured to by some seller.
Post pictures (lots, including the driver's seat which gets the most wear, and any non-stock item like the pin-stripping), a price, and maintenance history (timing belt change) and have a Carfax/Autocheck report available to a potential buyer. That's what going to generate calls.
Don't get me wrong. I'm not trying to hammer you here. I sounds like you've got a great, low-mileage S. I'd be great that a fellow BB member and "Alfisti" gets it.