Open Baffle vs Box

A few years ago, I heard the Spatial in Chicago audio show, and they are very impressive speaker, I would want to hear the new M5 Sapphire.

You can put together a fine open baffle set up for 25% of what you'll pay for the Spatial's. 

Lii Audio offers their flagship full-range driver for $1000.  It is 100 db efficient, and you can have a mid size baffle built, and power it with a low power tube amp and have absolutely wonderful sound. I have $1300 in my open baffles, and could not be happier. Here is a YouTube clip of what I have. Don't try to judge the sound from my iphone microphone. This is for the look only:

https://www.youtube.com/watch?v=b_yrG3ZzE1g&t=80s

I started using open baffles about 2 years ago, and I could never go back to a box speaker now.

I can certainly appreciate the DIY open baffles. Not sure that's me. I would like to rely on the very knowledgable designers and engineers to do the integration, testing and presentation for me and that is really what you are paying for. That said, since my initial goal was to replace my older Vandersteen 2ces I see that there are quite a few companies with the OB design. Pure Audio also looks interesting in the modular open architecture approach. Anyone out there own anything from PAP or comparisons to Spatial? Liking the Trio15's vs the M3 Sapphires 

I am new to OBs, but am now a convert. I was a big Vandy fan, but having now experienced Spatial, I find them much more enjoyable. See https://www.audiocircle.com/index.php?topic=165532.0