I was gifted a Victorinox Woodsman when I was around 13 from my parents. My dad got it in Switzerland where they engraved them. My dad had the Explorer and my brother got the (discontinued) Craftsman.
I feel very fortunate about my first SAK. I happen to think the (since discontinued) Woodsman is one of the best toolsets they've ever offered. It combines the two most popular 4-layer models, Huntsman and Explorer, with both the wood saw and the mag+inline phillips layers. It's only slightly larger but becomes both a great EDC and camping/outdoors tool. If I could only have one SAK, this model would likely be it.
I still have it and it's in good shape (I didn't use it as thoroughly as I should have). Since the scales are part of the sentimental value to me, I only use it for very light tasks as I don't want them to crack or anything. Then again, every time I use it adds to its value.




My second SAK was also a gift from my parents for graduation -- Cybertool 34 (M). That's also an incredibly useful toolset, especially for the kind of work I do. I've bought all the rest since (now at around 20).