Imo big deal about Felco (and other top end European brands like Löwe) is that the blades are replaceable. Due to that the shears last forever even in professional use. Japanese design is more traditional but if you use them daily the blades definitely get dull eventually (or they could chip if abused). You can resharpen the Felcos, it's actually a lot easier since you could even remove the blades and simply mount them on a professional grinding machine, but I assume most people just swap the blades for a brand new set instead.