To me it depends on your ear and your background. I'm an old radio guy who does some AV work to keep a bit of food on the table. A buddy recently suggested that a room was too boomy and to drop the EQ around 125. I went to all the EQs (way too many) that the engineer had set up and dropped them all just a touch at 125. It became less boomy and much better sounding. I couldn't care less what brand or make the EQs were as long as I could make the room sound better.
I'm the same with EQs, Compressors, etc... on my DAW. The ones that came with it, the Melda freebies and the NI ones from KU are perfectly fine by me. If I want to mess with convo reverb, the stuff in GR (Reflektor?) is fine by me. But I know a lot of you guys have great ears and great background in music and might want to recreate a certain Beatles sound with recreations of everything in Abbey Road Studios.
On the other hand I love listening to Pianos and the difference between Steinway, Yamaha, Baldwin, Bosendorfer, et all is huge to me. I love kicking up some old midis I found of Berlin / Porter / Gershwin medleys and listening to them with different pianos in my DAW just for my own pleasure. I downloaded all the PianoTeq old freebies of 1700s and 1800s pianos just for this reason. So is it any less different for me wanting lots of pianos and someone else wanting every EQ and Reverb he can find. Not really. He can hear each exquisite shade of difference in that expensive EQ, while I can fall in love with a digital recreation of a pianoforte or harpsichord that I could never afford in real life.