Then have a look at Chinese's WSM-mod and you'll see how many people would buy a DC2.
I played DC and i had trouble with it. Play SH2 and you get showered in depthcharges. Play DC and you can only drop a few and run out before finding the correct depth. Maybe it's my fault, but it wasn't fun.
WMS IS fun and would be even better, if the AI would be trained in surface combat (adding smoke-screen and DD torpedo-attacks) and maybe even launching planes from a CV if a capital-ship feature is added.
Also have a look at the thousands of Navyfield-palyers. Imagine a full 3D Navyfield