Bill, I went ahead and splurged a few months ago and bought my first Mammut... 70M, super dry, bi-color, 10.5. I really like it but it was not cheap. I had been telling myself for years that my next rope would be a Mammut and now it is. Never been real happy with the Beal's but I've also only used other folks and never owned one myself. The price is usually right.
As far as your freebee rope, I'm guessing it is not likely to break on a sport climb fall. Rather, it has probably lost most of it's elasticity. On the safe side, JUST DON'T FALL! & everting gonna be all-ight.
BTW, Click & Clack rule! But can you remember last week's puzzler?