Polar S625x vs. Nike Triax Elite HRM/SDM

Okay, I know, I know, many people have discussed the S625x. I don't know if I'll ever be able to afford either of these devices, but as I shop around on eBay and elsewhere I'd like to be ready when the time is right. Anyone have any experience with both of these? I lean towards the Polar but it would be nice to be able to wear the watch all the time and the Nike seems better for this. But I don't want to spend this much money on something just b/c it looks good. Any thoughts out there?