The difference between Sea Life and the Dungeons compared to LDC is that they're both relatively simply walk-through attractions. The dwelling time for both is much less than the 3-4 hours Merlin claim is feasible in an LDC. Sea Life in its nature lends itself as a full scaled midway attraction and is also viable to be condensed down into a theme park. The Dungeons was merely a "have this or have nothing" jab from upper management; relatively cost-effective on the whole. Add in the costs of operators for two rides and a 4D cinema, a master builder workshop, roaming staff and cleaners and the upfront cost simply wouldn't return the investment at Towers. They'd have to change the entire format to make an LDC work in a theme park, even to put one in a Legoland. No matter how many times an LDC is mentioned for Towers, I firmly believe they won't put one in. It would cost too much upfront to install, they'd have to put a higher upcharge on it than the Dungeons (which has already seen its operating hours cut less than 2 months in) and the costs of running it would soon see it closed down. Yes Merlin are renowned for making illogical and outright bizarre investment decisions. There will however be a tiny speck of common sense buried in a deepest, darkest corner in a Merlin office somewhere that dictates an LDC would never be built in a theme park.