That's what's advertised. Then there's the actual product... The tested samples failed to live up to the add copy.
http://forum.tvfool.com/showthread.php?t=13583
http://forum.tvfool.com/showthread.php?t=13530
For most applications, the 2 dB difference is irrelevant. However, if the LNA-200 actually delivered on the advertised NF, there may be a few cases where the added cost could be justified. In an effort to be a bit generous, perhaps the 1 dB NF claimed may be that of the active devise without accounting for the effects of the additional components. If so, shame on the advertising department for incomplete (misleading) statements. Then there's the issue of no shielding, which makes FM interference a serious issue in some applications. And finally, the overload tolerance is not as claimed.
The bottom line remains the same... price/(features & performance)