The function of the modern components is quite desireable. imho
While I like the "look" of many older gruppos from various manufacturers, I find the function does not suit itself to my preferred riding style in many cases.
Take this new Box Dog Pelican for example.
My spouse is looking for a comfortable everyday, practical rider.
Add the new Winter produced BDP with a carefully mixed collection of practical, durable components and you can achieve a nice "look" and the function/performance she is hoping for.
...and it doesn't hurt to use an older component if it suits the build.
Pics from the BDP site.