Painpoints, wishes and desires in the community

Hi everyone,
I’m currently working on a market research project and it a major optics manufacturer. We are looking into the DIY holography space, and to be honest, I really want to avoid the usual corporate guesswork.

I figured the best way is to just ask the people actually building these setups.

I'd love to know what your biggest headaches are right now. Are you struggling to find decent parts, or is it mostly a pricing issue?

I'm also curious if you think there's a real need for reliable kits, or if this community is strictly about building everything from scratch.

If a massive optics company suddenly asked you what they should start making for DIYers, what’s the first thing you'd tell them?

Also, aside from the gear itself, what kind of final projects are you ultimately trying to pull off (feel free to post them here) ?

Feel free to just drop a quick rant or a wishlist. I want to make sure actual, community feedback makes it into this project.
Thanks in advance for any input!