My wife would let me get all three, I just don't see the need in getting all three. I think the Wii sold so much because of price point first of all. Second of all, overzealous parents are not going to blow a wad of cash on a 5 or 6 year old for something they might not even be interested in. I started my kids gaming young with handhelds and it took them a while to get into those even. It took years for them to warm up to the consoles. Even then, all they want to play is games they can relate to, which all have cartoonish graphics (most gamecube/wii games). They are not interested in COD3, GOW, SOCOM, FNR3, FF series, and the like... Different audience buys different consoles.
I wish there was more for the PS3, but we've been waiting this long. A few more months is not going to hurt. Besides, I still have my chipped XBOX, and most 360 titles come to the xbox1. I don't feel like I am missing out on anything. I have never played xbox live, so I don't know what I'm missing there either. I like the free online play by Sony. I'm sure by the holiday 2007, the playing field will be even and the race will be very close. One of my friends has a 360 and he won't buy a PS3.
He doesn't want to shell out the money for the PS3... he has it, but can't see parting with it when he already has the 360. I'm sure a lot of other people see it the same way. There are a lot of us that have multiple systems more for braggin' rights I bet... just because we can afford it. Most everyone I know would not spend the cash on more than one system.