The Sun Ray DX-1 costs about $60.00 more than the Garrett Pro Pointer and lasts about $300.00 worth longer. In fact, I've never had a Sun Ray probe go bad.
I had a DX-1 on a V3i and it is not "motion only". When you lock your toggle switch in pin point mode, then switch from "coil" to "probe" the Dx-1 probe is now in pin point.
Folks, all the DX-1 is, is a one inch coil. It comes with a little control box that allows you to switch back and forth between the 12", 10", 6x10", 9.5", 5.3", 4x6", or whatever coil you have mounted to the end of the rod, and the one inch coil mounted inside of the probe.
The entire DX-1 assembly weighs 10 ounces. If you are so weak that you can't handle an additional 10 ounces mounted to your detector, carry it in your pocket or finds pouch while you hunt.
And no, the DX-1 will not run your batteries down faster. Whenever it is "on", the search coil is "off", so no additional battery drain is possible.
The ONLY logical argument I have ever heard against the inline probe is if you own multiple detectors and only want to invest in one pin pointer. Personally, I like the inline probes so much, I have them on all my detectors that can use them.