Luigi's Mansion 2 Idea

[JackMan]

Luigi's mansion doesn't need a sequel, it's perfectly fine without one.

This is true.
However.

I still want one. Lots of people still want one. Super Mario RPG is perfect without a sequel, but people still want one.

You're using Star Wars logic here.
The originals were fine without sequels, but they made some. (Yes, i know they sucked ass, but that's beside the point. It finished what it had started, and that's sequels are for. The common misconception is that a sequel is made to top the previous entity.)

More to the point; and more onto Koopaul's post, it has TONS of potential for a sequel, and let's face it; it will always carry on with Luigi.
It's been a gimmick for him since the game came out; Luigi is associated with ghosts, vacuums, crap that was featured in-game.
They might as well just make a sequel and stop milking it.

Nobody can tell me they don't want a sequel to that game.
Reasons why they should make one-
-Too freaking short of a game
-Had incredible positives for a Gamecube game (Hasn't aged a bit, save for graphics, and even then the graphics still look great today.)
-Nice change of pace from the general Mario game
-Luigi's "breakout" role. (Mario is Missing doesn't count because that game can give people tumors.)

I could go on and on, but i'm going to stop now.