PSA Set Registry

Hey all,

I'm rather new but have been collecting for a while and I'm coming up on a complete set of PSA 9/10 shadowless. I have about 5 cards left.  I have discovered the set registry and see a few people have theirs up there.  My question is should I do this when I complete mine? Are there advantages/disadvantages to doing this?  Haven't seen much talk on set registry and i'm wondering how you all feel about it.  

Thanks!

I use it to keep track of cards I still need and to record the prices I spent on each card. So mainly I use it while collecting a set, not so much after the set is completed