And they were hardly unpopular. I think you'll find they rank among some of the highest-sale GB games...
I think they're great fun... Wario's such a great character ^_^
I wonder if WL4 will have Waluigi as a secondary character.
More info on SMA, by the way... it's a SMB2 remake, by the looks of it. A few differences, a Mario Bros. game option... and a few screenshots. Unfortunately they don't seem to be pointing towards originality with Mario platformers. Just more rehashes of old games that we all already have ~_~;