The Omnibus

How do you feel about Omnibuses?  I understand why they are created, popular trilogies (or quartets and quintets) are collected into one volume and sold at a good price. People buy, read, it's great. Sometimes they replace the individual novels.

Here is where my question really comes from: Do you read the omnibus as if it were one book? Typically, when I read series, I break them up. I like variety, I like to think and ponder. It's been a long time since I binge read a series. I can't even think of an instance. Maybe when I read Harry Potter when only the first four books were out? I haven't felt the urge to binge-read either. Recently, I read Seed to Harvest and Underwater Love (two completely different books).  Seed to Harvest is the collection of Octavia E. Butler's Patternmaster series. Underwater Love is the collection of MaryJanice Davidson's Fred the Mermaid series. In both cases, I broke up the series, reading each book, then something else, then coming back. Neither omnibus was that long, but I chose this option anyway. Patternmaster is a series of such different books, I don't know if reading them all together would have mattered.

Part of me feels ridiculous for doing this.  Am I ridiculous?  This is just how I've always read series, interspersed with other books.  The omnibuses have just made me think about my choices.