Hello sneakyspider,
I was wondering the same thing before buying one and I discovered that I don't turn pages that often (or it doesn't seem to be that often). I really like the small size when I'm using public transit or when I'm reading in bed all tucked under the blankets.
This week I used my Sony 650 again. At first I was surprised by its heaviness, but the size difference wasn't an issue one way or another.
If there was a Mini Glo, I would buy it in a heartbeat! If I had to change (from Kobo), I would try and hunt a Sony 350. 5" is really a convenient size
