I like wrecks because I like ships, boats, and artifacts, and the unique history and lasting effect from each, and for good measure the habitat they provide in an otherwise "sand desert".
To me, "real" wrecks are special, more so if I remember or know something about the event. The CHESTER POLING hull-split and sinking off Gloucester almost 40 years ago in a severe January storm, happened while I was a (desk-driving) member of the Coast Guard in Boston, and knew some of the rescuers who came very close to not making it home themselves, while saving 6 of the 7 crew. Diving her and seeing where the deck drops off to sand, and the bottom plating that fractured first, is cool (so's the water, even in August). I read the Coast Guard Board of Investigation report before the dive, and gave my photocopy of it to the captain of the CAPE ANN DIVER, who was interested in reading about it, and some of the inspection reforms that resulted (hull thicknesses were on the sketchy side on this age 40 lake/river turned (unwisely?) coastal tanker). As an old CG marine inspector and investigator, I was taught, "all the marine safety regulations are written in blood", and out of this casualty and the S/S MARINE ELECTRIC a few years later, came the requirement for survival suits, and better hull/hatch corrosion inspections.
And the "Russian Freighter" off Pensacola is intersting because you just don't see WWI-era scotch boilers any more. Those "machinery museums" are pretty much all underwater. Same for the hull remnants USS MASSACHUSETTS just off the Pensacola channel.
So my interest is in the drama that brought them to that end, and what did we learn--not in taking something away.