Keep in mind just a few years ago, the DS was easily clearing 500k-600k in a month like July with no real big game releases. Now Nintendo's got really work to keep sales hovering at about 130k-150k/month outside of the holidays.
You and your friends are the minority portion of the market, you may want to accept that.
A new console can't compete with a console 5 years into its life cycle. That's a ridiculous comparison to make. Try comparing 3DS to '05 or '06 DS instead.