Any traditional scrappers who use digital papers, etc.?

Yes, I do print some of my digi stuff from time to time. I mostly have done with Traci Reed (Sweet Shoppe) and In a Creative Bubble (geralyn sy). I think I've done some from Simple Stories and Katie Pertiet too. I like printing on vellum, but use the Epson 2-sided presentation paper also - it's very bright white.

I didn't understand the big difference with the resolution. I did a test printing out digi versions and printable versions and could not see a difference. Sometimes the digi version will have shadow and highlights to mimic 3d, so you don't need it, but it also does not hurt in printed version as well. It's probably more a preference.

The digi shops Sweet Shoppe and Lilypad will def have some sales this week and weekend for iNSD. They also usually have a blog hop for free items.

Also SCT magazine has a free printable sheet with its release.

Be careful! Digi supplies can be addicting! I try to really only get themes I use over and over and then only if I see the kit used and really like it. If you are ok with photoshop or maybe even canva now, you can work with the pngs by flipping them, mirroring, changing shades, tones, etc.

Gingerscraps is a good place to find digital paper and there is always some sort of sale going on during the week.

Also, Traci Reed's website has tons, here's a link to her freebies if you want to try them out.