I haven't taken the plunge for a .17hmr, and probably won't. I've been shooting .22wmr for nearly 40 years, and it's more than sufficient. I can buy cheap but functional Fiochhi 40gr. for $5.99/box, and most of the rest for under $10. The only expensive round is the Remington 33gr. at $14. The original round, the JHP Winchester 40gr, is HIGHLY accurate, and an excellent varmint round
Although it's not as flat shooting as a .17, it packs a punch for its size, and has the same or better ballistics at 100 yards as 22lr has at the muzzle.
I don't think the .17 will meet the same fate as the 5mm, but I don't expect the prices on the ammo or the choices to ever meet or better 22wmr.