Sample Modelling stuff is excellent, but you really need a breath/wind controller.
If I was to but a Vibraphone, it would be SonicCouture, it seems by far the best, and they lots of other cool things too. It's worth ding an upgrade with them as you get a free non-Player pack with each purchase. I fancy those 10cc Vocal pads. (I think they had a 50% off in the winter). I als have an interest in their Hang Drum. but it's also quite novelty (Early Portico Quartet sound demonstrates it's more than Hippie potential). There Suitcase Rhodes wuld be high n my ist if I didn't have AAS and XLN's option. Zo did a great review of there electronic kits, but I waiting for a deal n Tremor now I know abut that.
That NI site is a mess though. I had to stumble my way through the to find the crossgrade price of 125 Dollars. There seems no direct way to the Kontakt 5 Page from the front page, but there is one to Kontakt 5 Player.
Because you have to login to see the cross grade list, which as I am eligible for, when I log in I can't see the cross grade list.