>>7717694
I stressed investing in a "desktop replacement" (i.e. Gaming) laptop for a reason as they have larger and better screens, can handle large resolution files, 3D and Animation while remaining easily stowable in a backpack (I take my laptop and tablet to work and my parents' house daily, leaving my big 27 inch display and Intuos XL in my apartment).
You don't need a mount necessarily but yes for ergonomics and postures' sake you need at least a cheap stand (I'm using these 3D printed "legs" I bought from Ebay) to raise the top of your display up to your brow level there are a wide variety of things for this purpose other than the meme mount. You can also of course output to a different screen with an HDMI cable.
A netbook style laptop like that isn't something I'd recommend because, just as a screen can be too large for your tablet it can also be too small. I also am however not sold on the need for some huge display but that's when an XL should be up for consideration. I personally think the 17 inch laptop is a great sweet spot and with a second monitor for references, chat windows etc. it's a great starting point.
>hoarding XLs
I wish, only L models are common enough to do something like this, but I can attest that you can usually find them complete with stylus for at or well under $100 and they're worth every penny