Hi, I don't really know why I'm asking this, as we still have a long time before we can switch pumps (apparently insurance covers new pump every 5 years, not 4). But I'm wondering about the difference in cost between Medtronic and tslim. The actual pump, as well as the sets, Or ongoing cost. Are they similar? I can see Ds liking the idea of the tslim, with its touch screen and all. He likes gadgets and tech stuff. Plus it seems easier to type in a number instead of scrolling. Another question, does the screen scratch easily? Is it plastic or glass? I like the idea of touch screen but when I see all the scratches on his current pump, and seeing as how it goes everywhere with him (including sledding down sand dunes. The pump did fine but his meter went too and it was so very full of sand! It still has some sand behind the screen. Lol) I wonder about the durability. And how is customer service? Just curious. Thanks in advance.