i think you need to consider what exactly you’re going to be putting in your trunk. i think it’s very practical for horse shows, except that I don’t see anywhere to put a grooming bag/tote! It really depends. I like that you can put your saddle inside, but i’d NEVER use that feature except for the handful of times that I stable at the shows–probably only a few times a year. I go to a lot of A’s, but luckily my division usually only runs for one day. so, i don’t need to worry about a place to keep my saddle over night.
if you’re going to wef and HITS and all those summer/winter circuits then i think an upright trunk is very practical.
i just think it depends on what you keep in there. I don’t keep saddle pads in my trunk, and i have a rubbermaid bin for flysheets/coolers/extra blanket storage. sometimes i keep more pads in there. but in my trunk, i don’t keep a lot of small things, that would go in those drawers in the upright trunk. i don’t keep my bridle or any tack in my trunk, they all go on hooks in the tack room. i mostly keep buckets with tack cleaning stuff, some extra crap, all of my shampoos and flysprays, and other things in there. none of the things that go in my trunk would fit practically into an upright trunk, so you should really look at each feature and think ‘okay, what can i put in here that i have?’ and then think “whats left? what didn’t i manage to fit in there, and is that going to be a problem??”
so for me, an upright trunk makes no sense. to others, it’s extremely practical.