Good point.I personally don't stick to one method.
also with all the auto reminders you can get from general online record sites. I have them auto populated into a folder counting 50+ or more. It's hard not to run across new music with some of the youtube players & auto email options now a days. Without even trying you run into so much more vs. even 3-5 years ago online.
I've also post audio sample links from other sites in the "note" section after I add it to my wishlist if the youtube isn't posted in discogs. Obliviously this helps me remember why I added it in the first place, but does help efficiently in the buying process.