Ya, but servers shut down all the time, is what I'm saying. MMOs that are too old or low on player base get shut down all the time. Online modes for games disappear. Patch servers go down. Eventually the Xbox 360 and PS3's online marketplaces will also disappear, along with the ability to download XBLA/PS3 PSN digital titles. Nintendo's Wii and DS servers going down is just another tombstone in a long line. Hell, you can't even use the full Final Fantasy IX strategy guide, because when Final Fantasy XI came out they revamped PlayOnline into the launcher for the game and gutted all the information for FFIX's guide out of the site.
Plus the 3DS is now 3 years old and the price had come down quite a bit from the original MSRP, and there's the 2DS. It's getting easier to make the switch all the time. I'm sure there are people that still play Pokemon: Black and White 2 and do internet stuff on there. But, one can't really expect that they'd just leave the servers for an 8 and 10 year old console running indefinitely.