I understand what people are saying about $100 not being "high end" but it is a point where you're getting a really good knife, certainly not a throw-away utilitarian object.
My first brand name knife was a SOG Trident, which at the time was around $100 here in Canada (yes, I know you can get them for 50 bucks at Walmart in the US now) but it was bought to be a working knife and is still used that way 5-6 days a week. The purchase that really cemented me as a knut was ordering a ZT 0350 and 0770CF together.
I haven't tried the Manix XL, but I do have 2 regular sized Manix2s, a lightweight and a normal one. They're great knives.