Just like anything else, everyone wants to try something new or own something new. The mxt, dfx, and xlt can still kick butt. I got an etrac and that is my favorite machine, yet its getting pretty old. Still finds the good stuff for me. The most important thing as you probably already know, is knowing your machine. The new ones are great, but nothing at all wrong with your mxt. Its a fine machine.i have a mxt 300 , i don"t see much talk on the mxt is it obsolete ? this was a top of the line machine , it still works great are all the new machines so much better ? ..tks on feed back ...