I think it's a fallacy to call the 200 top of the line & the 50 mid level. To me, price has nothing to do with these sort of descriptors. I differentiate on function & usability. I own an ATX 200 & an XTX 200 & don't like the way they mount on single tanks at all. In fact when I used the 200 on singles (thats several hundred dives worth) I mounted it upside down. I much prefer the DS4 50 for my singles rig. I like my tank high enough on my back to manipulate my valves & the DS4 gives me about an inch more head room then a 200 mounted the right way up.
But as bubble said; I think that, on a fundamental level, you and I approach scuba gear purchases in a different way. Enjoy the XTX200. I'm sure you'll be very happy with it.
But as bubble said; I think that, on a fundamental level, you and I approach scuba gear purchases in a different way. Enjoy the XTX200. I'm sure you'll be very happy with it.