Yes it is old tech. The first CRT was made in the late 1920s. The downside of a CRT is wieght. If have an older 32" and it wieghs a lot, big foot print. But you can still see the picture in bright room lights, wide angle of view, LONG,LONG life.
All of the LCD,DLP will have to have lamp replacement some day cost can be $200~500 depending on model.
Some are claiming a 10,000 hour lamp life. But time will tell. So lets say 6 hours a day = 4.5 years. Your choice. John