Any firearm would keep value being unfired. However, not every gun attains collectability even if it's a limited edition/non-cataloged model. There's simply so many distributor models made now for that. Some do, most don't. A big part in that is the model itself and well, the Ruger autos just don't have the collector interest. (exception being the early MK series models and a handful of later MK models) Sometimes the special runs get collector attention and their supply vs demand dictates higher values. often though they simmer in regards to their values and often see a decline in values. It's hit or miss.
If you bought it to shoot, shoot it. If you bought it to tuck away, that's fine as well. Gotta kinda look long term when doing that though and not rely on it being an investment. Gotta look at previous similar models and their collectability and be able to perceive what a particular model will have itself in years to come.
Bottom line of course is it's value to you not in a monetary way but as one that just makes you