Yes, but that’s the 6000 series which is a different class as well so not just an older model.
What's the difference between the 49NU7100K and the 49NU7000?
Not sure - seems a good price for a new-model 49", over £630 elsewhere. If you must have the latest model then this seems good. However, you can get the previous year range (MU) much cheaper - e.g. £520 for the UE49MU6400 from Richer Sounds - I have the 40" version of that which is a great TV