I promise you that the Saleae's polished appearance, both hardware and software, is a
big part of why it's the most popular of all the low-end logic analyzers.
Engineers like form too, even if they don't want to admit it. Attention to detail in that area makes them think of quality. Just look at Dave going on and on about the build quality of his favorite high-end test gear. Most of it isn't
actually important to making the product work, it just gives it a solid, well-engineered feel.
The fact that the Keylent-Packard scopes he reviews feel "solid" compared to a Siglent with a light, creaky, plasticky case doesn't actually matter at all.
And yeah, the plasticky one
still makes my skin crawl. What can I say? I'm human.