disc player upgrade bug: Esoteric vs EMM vs PS Audio

I upgraded my amp(s) last year (Benchmark), then got the BHK preamp which astounded me and made me think PS Audio is keeping it real. Both moves were down in price and glitz from what I owned but huge leaps forward in quality. So now, with over 2000 discs (CD and SACD) I'm thinking the source might be the next big improvement. I've got an Esoteric X-01 limited and a Cary 306 pro (for CD use mainly). They sound great but are old tech now, so I'm wondering......... does it get better - as we here all do!
I was thinking about an experienced K-01 or maybe an EMM piece as a possible upgrade, but the PS Audio DAC and transport look very promising. Esoteric and their transport are amazing, I believe EMM uses their transport also but Ed works his magic in different ways. The PS Audio pieces use their own approach, and are very versatile - but - as of now - disc playing is my top concern, not streaming. PS Audio uses the Oppo transport though, and I've never heard anyone tout the robust durability of that transport . I suppose the end justifies the means, but durability is a big concern 'cause even the best gear if non functioning doesn't sound so good. Your thoughts or input please, but I've narrowed my choice to these 3 manufacturers so let's stay focused gang, mmm-kay?