Arduino Tiny

Docedison:
Is it worth the required space to install it in (1.5.X)...

I have not used 1.5.X since I first installed it. 1.0.X is an excellent choice for...

My primary interest's now are the 328, 2560...

... and I'd sure like to learn to really use the 2313. After I think, a better understanding of the Language.

Yeah, that 2313 really tests the limits of one's sanity. So very little memory.