Yep. It's purely a matter of personal choice. And when it comes to a gun this nostalgic and classic, that choice can mean practicality might take a back seat to romance. I craved a long barreled nickel .45 ever since I was 14 and saw Shane for the first time. I didn't care about balance or anything. I just thought it was a cool and must own one. A little later I saw a guy at a fair dressed as a cowboy and he let see his his "Shane gun", a 7 1/2" nickel .45. So, you might just want to choose based on my silly nonscientific reasoning.It doesn't matter what any of us on the forum think. What do you like; that's all that's important. Go with the one that you like the feel of and answers what you think a SAA should be.
Personally I don't particularly care for the 7.5", unless it's an early 1st gen. I prefer 4.75" and 5.5" guns; somehow they just feel "right" to me.
When you say "presentation box" are these commemoratives or standard production? Commemoratives are generally less desirable and usually command a lower price than standard production, BUT at $1,200.00 each that's still an excellent price, and if I had the coin, I'd pick them both up, whether or not they were commemoratives.$1200 each in a presentation box unturned & unfired