Anyone still using the original spark plugs?

[dchan865]

Time for a 2nd round of timing belt replacement at 215K as I hope it will last another 100k. While my rig is in the shop, I am thinking of replacing the spark plugs for the 1st time. Anyone with higher mileage than me and still using the original spark plugs?   I am wondering how long they will last and whether its a waste of money(~$380 parts+labor) to get it replace now. 

Thanks!

[Lexus_DK]

Change them every 120,000 miles. Your car is past due