I haven’t shaved with a disposable in years, and it was the price (and the promise of a better shave) that chased me away. I used to go through two Fusion cartridges each and every week, for a total annual bill of almost $420 on blades alone. But if you’re willing to take a few extra minutes in the morning, and a few weeks to learn a new skill, you can save a bundle by switching to old-school double edge safety razors.
Anyway, buying the best of the best products was about $200 up front to get in, then annual expenses of about $100 or so a year. You could easily spend just half of that, if you really wanted to save the money. The razor and the brush will both outlive their owner, so the buy-in expense amortizes down to almost zero. In my case I’m spending 25% of what I used to spend just on cartridges, while getting a shave almost equal to the one you’d get from a professional barber. The only trick is, taking some time to learn a new skill.
I didn't even buy the fancy razor - I bought the $40 Merkur from The Art of Shaving, and it's been perfectly fine for me. Even better, I bought an antique brass Gillette safety razor from an antique store in Wisconsin for $4, and depending on what razors I use that gives me the best shave of all. I won't spend another dime on cartridge razors. That's money down the drain.