Digital BW, The Print

Hello,

I was looking at Moab papers at a local store online today (vistek.com) and
they are carrying Kayenta 13"x19" (50sheets) for US$62.00 ($72CDN) and
13"x50' rolls for US$53 ($62CDN).  Getting the sheets is cheaper.  Is it
just with this store, or is this generally the case.  If one generally
sticks to standard paper sizes, are the sheets a better choice then?

I had thought that buying in roll form had two advantages, one being the
freedom of varied widths for various situations, the other being cost
savings (I thought it was equivalent to buying in bulk).  Is this the case?

Guhan