Is a single multi-size machine a good deal?
Our position, and the one-SKU counterpoint.
Our position
A machine that swaps dies to make 1", 1.25", and 2.25" buttons sounds like a deal. In practice, the die swaps take 5+ minutes, parts end up on different tables, and the cheaper multi-size machines are not precise enough to make clean buttons in all three sizes. Pick a size and buy a single-size press for that size. Add a second press for the second size when the program warrants it.
Other voices
Reputable sources worth reading before you decide. Labels reflect our honest read of each source's general stance, not direct quotes.
Professional button maker line-up
Broadly agreesABM sells dedicated machines per button size. The pros do not share a machine across sizes because the mechanical tolerances differ.
Low-volume multi-use
Nuanced / mixedFor a very low-volume user who needs both sizes occasionally, the multi-size machine is one purchase instead of two. Context-dependent.