The catch is finding the right buyer, someone that really wants it and does not realize how poorly made they were. The original Titanium is the desired rifle as it was light but in most cases the receiver was used to build a better rifle.
The Alaskan Titanium was overpriced when it first came out and was far from being a lightweight rifle. Huge quality control issues on the Remington floor at the time when these rifles were made. I tried one out and ended up in a battle with the shop that sent it to me. There were problems with the barrels, cracked and warped stocks, off-centre holes for the action screws, chipped crowns, faulty extractors, etc. So, if the rifle you have is pristine and happened to avoid the Q/C issues, you might have something worth a few bucks due to its rarity. I would guess $1500 at the high end, but you could fetch far higher depending on the rifle's condition and how badly someone wants it.
I sold an original Titanium for $2000, but it was new in box and someone was willing to pay. Supply and demand.