I think that I am pretty much conservative. When I am satisfied, I stick with things. I do not do a lot of heavy cutting, so no need for supersteels. When i first got into modern knives within few month I went through Gerber X-frame, Emerson Traveler, Griptilian, Spyderco Native, Presideo, Delica ZDP, Delica VG10/SE, Adventura. Than in August 2006, I bought Spyderco C83 Persian and it stick to my RFP. About a year ago Navaja attempted to replace Persian, at least for few day a week, but it lasted couple weeks only.
The rest of my pockets were empty, so R2 lived in my LFP for few month, until it was kick-out by G10 Caly3, which live there for about four years until Spyderco produced Caly3.5, which is there now.
Kopa Cocobolo found a place in my watch pocket. Jigged bone Micro-Dyad attempted to replace it, but it was successful for about a week only and then Kopa came back. Still I didn't like a clip in my watch pocket, so two month ago, after four years in service without vacation, Kopa was replaced by Moki Glory.
I do not know the future, but sometimes I can hear that green Para2 is calling my name.........