I pretty much agree with what
@jbuhler is saying on this page.
OT basically started a pre-order period with just a teaser.
So at this point we can only make assumptions. And I would be surprised if they increased the pre-order price before releasing an in-depth walkthrough.
And I also prefer a "walkthrough only" rather than a "demo only" pre-order period.
Its best to have both, but if I had to make a choice, it would be a walkthrough.
You get a more in-depth look at the sound of the individual patches/articulations.
And with a walkthrough video, we might also been able to get some info on their "Power Legato". (TBH, they should be more clear about what Power Legato is on their product page)
You can also sometimes even spot the cons of the library with walkthroughs, where with a single demo, you can only get a glimpse.
I'm not sure how many people could make a decision of paying $400 from a glimpse...
Don't get me wrong. I'm not hating on OT. I love some of their libraries.
I just don't like how they are doing it with the Ark4 pre-order period.
Just my personal humble opinion.