The thing about Metroid Prime Trilogy and Super Mario All-Stars is that the former is labeled with "Collector's Edition" and the latter "Limited Edition." For some strange reason, games with these labels tend to sell for a lot more than regular games, regardless of availability. SMAS sold over 2 million worldwide, and MPT likely sold at least a few hundred thousand, so neither one is rare, just in demand.
Unless XenoBlade is actually labeled as a limited edition or something, I don't see it becoming valuable.