Hi all, I'm hoping someone could help me decide between two similar models of Columbia folding bikes. Everything is the same except the frame. I'll be getting one of the two since it's a good price for a full sized folding bike, and the 20" models have 4 star reviews on Amazon.

I'll be keeping it inside when not riding, so weathering should be a non-factor. And I'd only be commuting 12 miles a day on it.

Is the alloy worth the $70 difference? And for what reason? I'd be spending the difference on some nonessential gear.

Steel: Columba SP26S Folding Bike Silver

Alloy: Columba RJ26A Alloy Folding Bike Silver

Thanks much!