I drove a 2011Toyota hybrid (ex Japan) a few months ago with 120,000 ms and the NMH battery was performing normally with fuel consumption well within manufacturer's spec.
IMO there has been too much unfounded anxt about hybrid batteries and its only a matter of time when your local Auto Elec can rebuild one for less than $1000. This is peanuts given that a major 100,000 km service on some European models can cost over $2K!