It's always a huge aspect of it. Everything is what you get used to.
When they first started offering Comixology day and date in 2011 and I got my tablet I was quite anxious about the idea of not really owning the books, I actually bought the first few issues of the Nu52 and then downloaded a pirated 'backup'. That lasted about 6 months. I felt that for full price I should 'own' it.
Now a few years on and everything apart from Marvel and DC you can download legally to CBR or CBZ, and most of what I buy is from Image, and I just can't be arsed. It's much easier to read in the app.
I'm sure I re-read less than Dave does, I don't do it with many comics really, just the classics, but even if I did I feel now I could just grab a month's sub, probably even for free as a trial (just register a new email address).
That's not to say I am right and others are wrong but we all approach stuff differently. I still buy music on physical CDs as I find the price is barely any different to digital and I can keep my copy and then still transfer to all my devices.