Quoted from SquidVicious

Fair enough I definitely see TOTAN come up for under 3K (not way under but under) and combined they are probably $5500ish ... but that would be for a nice TOTAN and a nice NGG ... me thinks that a nice (not mint)  MM would be more than $5500 (closer to 6500)

Sure post this while I am typing up a response agreeing with you  

Next time someone finds a MM for 5.5K be sure to send it my way, I can't say I've ever seen one that low.  6K and above yea I've seen that, sub 6K I've never seen one.  

A nice MM is minimum $6.5KUSD and then you have to get it into Canada. Easily gonna cost you $7.5-8K to get one. There are not many around here and the ones that are around are loved by their owners. As Adam says any $6K MM  would sell easily. I have been offered much more than that for mine and have declined. Replacement cost is to high.

Quoted from jonny_eh

1) Has a better theme/artwork
2) Has a better playfield layout
3) Has the best rules

1) Subjective
2) Totan (for the interesting ramps and the fun of spinning the lamp) MM is a better fan layout though.
3) MM

They're all good games. The main question is how much do you want to spend. All are going to give you great pinball entertainment.

$2400 for NGG? Probably a bit on the shy side, but since I would be glad to pay that for one, sure that's a good number.