What do you do when you want to read the books?
Since they are on stands it's easy enough to move 3-4 to get one out. Those Omnibus editions are so big it takes me awhile to get through one. So, it's not like I'm having to rearrange all the time. You may not be able to tell but about 7 of those Omnibus haven't even had the shrink wrap removed. I'm actually reading an Essential(Werewolf by Night) right now. I keep those on another shelf. I've read all the smaller TPB's.
Since Omnibus editions tend to to out of print I get the ones I want(cause they are on sell 40-50% the first few months at various sites) and worry about reading them later, time permitting.
I got into them late and the Frank Miller Daredevils, Uncanny X-Men vol.1 and FF(silver age) vol2 are all OOP and run about twice retail on ebay. Normal retail can be $75-125USD if your not familiar with them. It's on oversized format that recolors and touches up the originals. Closest comparison is like going VHS to BluRay, especially on the Silver Age and Bronze Age material.