As you may be aware by now, I think the relationship between manufacturing companies and CAD companies looks more parasitic than symbiotic. I advocate that the manufacturing companies join forces to lobby for reform of the software industry.
In the blog post Grassroots Support Helps eBay Lobbying Efforts, the author points out that eBay has shown success in lobbying various state legislatures for laws that help them. One law they shot down was a Louisiana law requiring sellers to pay $300 for an auctioneer license. The author also points out that other tech companies have lagged in their use of lobbying as a business tool.