I have started using the titanium replacement blades because they seem to last longer than the regular blades. They are a tad higher in price initially but since I don't buy them as often, I save money. Shipping is great and the prices more than reasonable.
I have replaced blades before but I'm hoping this titanium blade will last a lot longer. I have other trimmers but my Fiskars is my favorite. Small price to pay for sharp cuts!