Electrics are solid. Couple of my friends rock them with no probs whatsoever.

You can get the Oakley A-Frame for like $90 if you look hard enough online, but most likely it will only come with an amber lens.

Pretty sure almost all goggles have replacement lenses.

Dragon has some pretty inexpensive goggles. I have a pair of Dragon DX goggles that I got for $35. The DX and DXS models fit smaller heads.

I have Airblaster Airgoggles now. They tight