If I can ever get the block chain to sync on my machine Ill be in for 1 or 2.
If you're thinking about solo-mining, you'll need more than "1 or 2".

I'm not looking to play the lottery :-)
At what point does solo mining become worth it, when you can generate at least 1 block per day? For Bitcoin you would have to have a ridiculous mine, but for something like Litecoin that's achievable by spending less than $40k on gear.