Currently I am a Nikon D7500 (APS-C) user. For a long time now, I have been thinking to go mirrorless, so I started comparing brands and lenses. I made a list of all the Nikon Z, Canon R and Sony FE cameras and lenses and read reviews, compared prices, size, etc... The idea behind it all is to get a smaller set in size and weight, full frame, no adapter and an electronic viewfinder. After many hours I got myself a shortlist for every brand. And I realized that due to the fact that Sony has a lot more choices (Tamron and Sigma lenses), this would definitely be the cheapest options and I could really build up the set that I want. But Canon has that 800mm f11 lens that truly interests me for lightweight wildlife photography (I have a young child and one on the way, I will not be going out for serious wildlife shooting any day soon). And I am a Nikon shooter atm, so taken a step to the Z range would be an easier one. Soon I was getting frustrated that Sigma and Tamron don't have anything native yet to Z and R.... Luckily there is some Samyang and laowa! But almost 3000eur for a native 24-70?? Pff, out of my league! Then I started to compare and think with my own set that I have, that I actually really enjoy and am very happy with. There is not a single thing that I would still like at this moment, I kind of feel my set is complete (except a nice UWA for stars/northernlights). And I realized... No... I just had some serious GAS! I am happy with what I got, I don't need anything else. Mirrorless, let's talk again in 3 years or so shall we? When Tamron and Sigma made the step towards you. And when the used market has more gear as well.