The best thing is the steel gramophone needles in original tin box placed on the phonograph!

Now seriously, I'm also a flat disc guy. If I ever considered the purchase of an Edison phonograph, I would go for a versatile machine that could play 4min cylinders, as I've read herein so many problems with the old 2min wax cylinders that I think I couldn't cope with that. It's certain that the interest is highest on these, being older and so and so... But if you like a phonograph to play frequently, I'd attach to the blue amberols and a sturdy machine that could play those.
This said, you can do what you want, of course, but the challenges of an older 2min machine are greater. At least you can make you sure if a 2min/4min conversion attachment can be used with this machine, this would make it feasible to play blue amberols too. But you'll need different reproducers, the gear unit, etc, and the invoice goes higher!
Notice that some of the cylinders in the photo are cracked or broken...