Hm, found what looks like a decent deal on local classifieds - 62€ for the Ryobi 18V jigsaw, new:
View attachment 3559550
Not the newer brushless version, but still looks like a solid tool. I only have some small-ish hand saws for now, and for all their rare use cases a powered jigsaw would've done me better. And it'd enable some basic woodworking like I'd like to get into at some point.
Any good reasons to not go for it?
It's done everything I've asked of it. The only things I wish it had were a toolless angle adjust lock (even though I rarely adjust it) , and a blade eject feature, so you don't need to handle a hot blade to remove it. It only takes T shank blades, in case you have a huge stash of other blades...
It vibrates WAY less than my old plug-in Black & Decker, but it's possible that it's purely because of the extra mass of the battery.
I've only used it to cut up to 3/4" plywood, and also 1/2" where the top 4mm was walnut (flooring). I've also used it to cut metal drapery rod to length, but the metal was really thin:
(Sorry for the strange perspective...I was lying back in bed)
I haven't used it to cut 2x4s, but it has an orbital cut feature, so I'm positive it'd do just fine, power wise, if not neatness (orbital cuts are tougher). I have a recip saw for heavier things like that, so I haven't used it for that.