A lot of features for the money no doubt...but to play devil's advocate:
* $800 vs $1000
* Less to fiddle with or worry about breaking
* flexibility to mix and match
* higher quality depending on parts chosen (Bilstein > BC)
* better ride quality (B8)
* adjustable (yellows)
* no scheduled downtime or spending more money every x miles to service/rebuild (not sure about the cost for BC rebuilds but was quoted $1k every 40k miles to service Ohlins)
* lifetime warranty vs 1 year
Just depends what's important to you.
I get where you're going with this but I guess I've just been doing this long enough to just go straight to a full suspension setup.
*He stated above that it was over $900 for springs/shocks so now we're talking about sub $100 difference
*im not sure what could break that couldn't break on any suspension, I set my car up once and haven't touched it since
*flexibility, being able to pick your spring rates and select from 4 different types of adjustable dampeners is quite a bit of flexibility
*higher quality, just gonna call that a matter of opinion
*better ride quality, definitely opinion
*rebuilding shocks is rebuilding shocks, no matter what company makes them and whether it's a coilover or a factory style shock/spring. We're talking about VWs here not full on race cars, so comparing any of these setups to Ohlins suspension is kind of silly.
*warranty, I'll give you that one haha
Like I said, I get it. Set it and forget it (for the most part), and like you said, it comes down to what's important to the owner/driver. I'm running wide 19s right now but maybe my next set of wheels will be 17/18s and even more meaty tires, and I'll Just adjust the suspension accordingly, if that isn't something you do (not you specifically, but whoever) then springs/shocks might make more sense.