Perhaps a compromise measure could be useful...
First, release the general art pack for the $9 price online for those willing to buy it. Then, when the first expansion comes out, include the art pack with the expansion as well with only a marginal price increase - say, $25 instead of $20, and perhaps include some of the 3rd party mods with the game as an added bonus (though the Starfleet mod would have to be passed on for copyright reasons).
Also, some considerations for the art pack and components in general...
1. Sort parts by their "function" as jewelry (command structures, engine structures, cargo structures, manuevering structures, etc.)
2. Make a drop-down menu to choose race style of parts, but keep the above hierarchy within each race style
3. Allow the use of multiple colors on parts (I.E., one part blue, another gold, another white, etc.)
4. Animated components (which have already been tested to some degree by modders, evidently)
5. If you're real sneaky, you could allow the AI to use ship designs you created when playing their races! (If this DOES wind up popping up in the game - and I doubt it will - I would make it an option to toggle, so that those who don't want to face their own designs in battle or delete their designs from battle to battle can do so...in the latter case, to avoid nasty crashes.)
6. Special components to allow rotating weapon turrets?
Now, I know that involving the coders in the art team's work at this time might not be advisable - especially considering how busy the code team is on polishing up v1.2. I offer these suggestions not in the expectation that they WILL be put in, but as a potential option for Stardock to consider, should it feel any of these suggestions have merit. And if any modders wish to take a stab at these ideas, please do so! I would love to see the mod community come up with their take on these ideas!
Anyway, that's my two cents. I have no qualm about paying the extra money for the art pack, as I absolutely LOVE the ship designer. I always like coming up with new ways of using the parts I'm given...indeed, lately I've been experimenting with using the "warp nacelle" component as a major ship section...the image below is one of the results...
I'm a ship builder nut, I am.
But please - if you are going to do the art pack as a separate download, please include it as a bonus for the first expansion pack as well, so that folks who want to buy a complete expansion set can still use the extra parts! Leave no one out!