If you have disposable funds dedicated / ear marked for your shooting hobby there is no reason to NOT buy a SCAR 16 and 17.
They're fantastic rifles, and the prices are reasonable again. I've owned AR15s continuously for the past 33 years, and have a difficult time finding fault with the Scar. I'm more familiar with ARs (obviously), but completely disagree with the argument that a SCAR doesn't do anything different than an AR. This amounts to people being cheap and/or locked into the AR design. Nothing wrong with an AR, but the SCAR can do things different than an "as issued" DI AR15:
Folding stock;
Will remain functional if the stock assembly breaks;
Reciprocating charging handle that functions as a REAL TIME forward assist;
Cradle to grave piston design;
Adjustable gas;
Reliable function (no gas in face) with suppressor;
Does not anneal bolt;
Improved ambi controls.
Yes, some non "TDP" ARs have switch blocks, AMBI lowers, piston abortions, etc. However, these are "product improvements" or "catch up engineering". The SCAR started on the concept white board as a modern rifle (not a 60 year old rifle that has been ... by necessity ... updated).
I'm not bashing DI ARs. I have them. I use them. I like them.
I am praising the SCAR.
I've been a SCAR owner since they first became available. I've not regretted the decision once.
If I could have only one rifle it would be a SCAR17.
If I could have two rifles it would be a SCAR17 and SCAR16.
If I could have three rifles it would be a SCAR17, SCAR16 and Ruger 10/22.
If I could have four rifles it would be a SCAR17, SCAR16, Ruger 10/22 and BCM BFH or Colt AR15.
Buy one or two. You won't regret it. However, do not expect it to feel or perform like an AR. It is a completely different animal. Give it time, and you'll come to appreciate it.
Also, resist the urge to change the gun from its original OEM format. Add an optic (I like ACOGs for the SCAR) and perhaps a Super Scar trigger. Leave the rest alone.