One surely distinguishes fine art by fine grain. This is old school pre-digital MF/LF approach and I can't see why not to go LF, cause it's cheaper, more capable and just so better in quality, than, let's say, a TLR like Rolleicord. Certainly LF will learn you more, Paul. And we're in post-digital world already, with, for example, lomography showing middle finger (or MF, for short) to this kind of evaluation of image quality.
The negative format and aesthetic consequences of it, like graininess of a final image, are same creative factors as any other. The fact is people sometimes want it, sometimes not. There are many more factors. Composition, point of view, subject, light, tonal values, sharpness/softness, use or absence of color... Similarities between one photo and some other photo made earlier (or a painting, movie, book). Quotes, or the lack of it. Following certain guidelines of a genre or a reason behind ignoring it. Big, big world of aesthetics.
To make expressing things easier it's good to know and to try to overcome creative limitations, but by no means it's print format. You order it - you have it as you've ordered. Look at 100x160 cm McCurry's prints from 35mm slides - is it less of an art? is the grain disgusting? 35mm film makes hard for anyone to understand something? People turn away from his exhibitions? Sure, the image is not perfect, but it's not always about perfect, detailed, clear, well-defined image. Not for all of us.
One needs to know various tools - cameras and lenses play a minor role here TBH, but it's one of the very few things one can buy, hence the hype made by people possessing big wallets, being possessed by little minds - nothing personal to anyone posting before me, just a general conclusion - folks have forgotten what photography is. I have nothing against collectors, I think it's a great, wise hobby, just... the subject was not "what camera to start collecting with"
The only way I see through the mess most of guys are making is to experience some things for real. 1000 USD is not a limiting factor here, but more of an opportunity. It's money, that teach people anything though. To learn one needs to collect data. As it grows, the collection becomes information, knowledge and finally wisdom.
If you can sell cameras, not only purchase, I'd say just have fun. Take a year, each week shoot a roll with a different type or model. I bet the memories of cameras will fade, and you'll be left with the weather, with who you've met, where you've been, with the adventure you've got and with some great photos taken and some not so great. That's life, that's what I like doing. If you ask yourself how to make more great photos, for one person the answer will be "keep diciplined", for another "know life better", for someone else "more hemp" or "more naked girls" (or hell, boys), if that's allowed to write here.
Cheers!