The 3DS made me re-analyze the DS library and this was one of the games I "discovered" at that time. I found it new at a retro games store in Bellingham, WA. This was quite a few years ago now because the 3DS was still a current system and I paid a typical new game price for it.
This might be my favourite DS game. It's the sort of opinion that could change depending on the day of the week but it's always going to be in the conversation. It is the DS game I would recommend the most to others. I hope it finds a new audience on the Switch because it really is something special and I think a lot of people would like it if it was easily accessible to them. Now it made a lot of use of the touchscreen so I'm not 100% sure how it is going to translate but hopefully it turns out well.
With a digital market place it really makes no sense for games to be stuck on inactive platforms unless there are major licensing issues blocking it. I'm strongly in favour of well regarded games being essentially "in print" at all times for newcomers to check out.