98% of the gear hype im subjected to comes from logging into this forum, so keep that in mind:
SLO100- don't get me wrong, this is a good amp, but I just don't get the hype on these. Someone described it as pedestrian, and I would agree. It just didn't bring anything to the table to compell me to plug into it, vs the majority of other amps I owned at the same time.
I will say that all you bastards were right about Wizard amps. The first time I plugged into my MCIi, it was a holy shit moment, and that has continued for going on 10 years now.
Dimarzio pickups. There are a couple special use cases, and form factors, not available elsewhere, but for straight up humbucker and single coils, there's nothing in their lineup that beats the offerings from the other usual suspects.
Alnico creambacks- spent a small fortune on a quad to put in a 4x12 when they first came out. Man, what a waste of money that was. Yuck!