Booklioness
I understand what you're saying here, and it makes sense. But my experience has been different. For me, I find that delving into different decks, studying them side-by-side with my RWS or the Thoth and seeing how the images and artwork differ ... these things enrich my experience and deepen my understanding of Tarot. I don't think that working with different decks has slowed me down near as much as learning to use reversals right from the start. I will add the caveat that (as I said earlier), I did not start buying new decks till I'd already been studying and gotten a good basic understanding of the Tarot to start with. But I do find that different decks bring different nuances to a reading.
I am also a newbie to Tarot. I am like you, Trogon; I like to look at the same card from different decks side by side as I learn/explore. I am also in awe of the great amount of wisdom to be gleaned on this forum.