Are aviation museums profitable...
As the Executive Director of an aviation museum I feel I have a little knowledge on this one.
First off...operationally or capitally...I will assume operationally.
A Museum can be operationally profitable if...
1) It charges a reasonable admission
2) Offers the visitor a story..with our museum we tell the story of our area
3) Does it well and interactively
4) Keeps costs in check!!!!!!
5) Has a profitable gift shop with good relevant products
6) Offers cirriculm based education enrichment programming
7) Is willing to make the facility availabile off hours for events

Concentrates on the wants and needs of the average visitor, not the aviation enthusiast....
I know the last one hurts but...the aviation enthusiast has a very high expectation level and (generally) doesn't like to spend a lot.
As part of the overall population aviation enthusiasts are a small segment
The general public (by and large) has a passing interest in aviation so if you cover their needs and expectations they will likely visit.
The general public is used to paying high fees for movies/entertainment, so a admission that is painful to an enthusiast is gentle to the average consumer.
The general public is more prone to buy from a good gift shop.
I am not agianst aviation enthusiasts by any means...I am one and a pilot, we welcome enthusiasts to our museum and enjoy them as a whole.
But if you had to rely on the enthusiast as a customer base...you would be in trouble.
BTW
Multiple visits are the norm in our facility, both tourists and locals, but we do some really different stuff to make that happen.
9) You must have a great volunteer group supporting the facility.
If you have to run with a totally paid staff you will never make it.
10) Be constantly adapting and researching to keep the visitors coming.
Just my opinions...love to hear yours
Tom H