That's like asking nodders why they're using a powermeter or why people commuting on carbon rims? I don't know, never having used them, but it's an option that didn't exist previously and might be useful.
Perfect answer from the right guy... ;)
@coventry_eagle started
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That's like asking nodders why they're using a powermeter or why people commuting on carbon rims? I don't know, never having used them, but it's an option that didn't exist previously and might be useful.