I would urge anybody just getting into ship modeling, and trying to pick a scale, to think about one other factor: eyesight.
I had the good fortune to be born nearsighted. Without my glasses I'd have trouble recognizing my wife from across a room, but until a few years ago I always worked on models without magnification. Age has caught up with me recently; the optometrist says my eyes are in excellent health, but I now need bifocals. (And my eyes, like most people's, are different from each other. Without my bifocals I have trouble getting both eyes to focus on, for instance, a book I'm holding in front of me.)
As we've discussed in several other threads here in the Forum, various gadgets are available to provide magnification for modelers. Some people like magnifying visors, like Optivisor; my own preference is a set of prescription reading glasses. With practice, it's possible to get used to such things. There's just no denying, though, that working without magnification is easier and more fun. Until a few years ago, for instance, I had no trouble installing a set of photo-etched guard rails on a 1/700-scale battleship without magnification. I can still do it, but only with my glasses - which I find myself taking off (whenever I need to focus on anything more than six inches away), mislaying, having to polish, etc. What used to be a fairly simple, fun activity is now an excercise in mild frustration - and takes at least twice as long.
I suspect that, if I hadn't originally been nearsighted, I wouldn't have been drawn to small scales. I'm inclined to think that 1/700-scale ships will be far more enjoyable for people with excellent closeup vision than for the rest of us. To the optically challengd, the difference between 1/700 and 1/350 really is pretty significant.
Anyway - whatever scale you pick, good luck. It's a great hobby.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.