DLP lamps

I own a Toshiba 72MX195 HD/DLP and it's about 3 months old. I have already had to replace the lamp which is warrantied for 1 year. Is there an issue with these lamps I should be aware of? The lamps are running around $400.00CDN and I am going to be quite disappointed, not to mention some other feelings that the moderators won't allow me to express, if this is going to be an ongoing issue. Could this have been just a faulty lamp? Are there any better aftermarket lamps I should be looking at for a spare?

If the TV or bulbs DO have a design flaw at least I can spread the word and help make people aware.

Thank for any thoughts.