This is the kind of feedback that I was half expecting.
Like I said before, I had never climbed with anything shorter than 50m, so the actual application of a shorter rope had never really been relevent to me. When you climb with a rope of sufficient size, you never really stop to think, "hmmm... i wonder what this pitch would be like, if my rope were 7 meters shorter." I am just glad that I had given this some forethought before jumping on the purchase, because as many of you have pointed out, I can see that there would be several instances where the shorter rope would be a real pain in the arse. I think what i will probably do, is just go with one nice "go to" rope, rather than buying two specialized ropes. I recently had to put my 60m mammut matterhorn "out to pasture" and it had been my work horse for everything. The price of ropes has just gotten really inflated (but i guess nothing is immune these days).
You guys make an excellent sounding board.... Thanks!