Tvad,
Interesting, as that is news to me.
My unit, acquired second hand, (I believe it was a year old when I bought it), has been in use by me for a number of years, (five or six I believe), and the transport has never failed. And in fact it is still going strong.
However, I will readily admit that the laser did fail a couple of months ago, (@ Christmas time), and Jeff Kalt replaced it quickly and easily. Jeff did say that the laser is typically good for about five years, and mine lasted six or seven years, so apparently I bet the odds. (FYI, I dropped it off to him at his place in San Francisco, which may explain why he repaired it for such an unbelievably low price. You would not believe me if I told you the cost, so I will not bother. If you really want to know, email me.)
Buying ANY piece of equipment "used" is always a gamble. That is why one should attempt to buy used equipment that is made in one's own country, IMHO. Repair costs and shipping costs will be just that much lower, if and when the time comes to have it repaired and/or upgraded.