They tried to get me to switch to a Slide too when my most recent MT4G broke.
But I hate slidey keyboards. I mean I HATE them. Plus the slide is a thicker handset, which isn't as pocket friendly.
I told them I'd gladly switch to a sensation, but they weren't going for that. I don't get it. Both are HTC products. They sell them both for $200 with a new contract. What's the different to T Mobile?
I'm 100% certain that my next replacement MT4G will be borked somehow too because it's pretty obvious to me that the product line has dismal quality control. I think the only solution is to let them give me the 4G slide and give it to my wife who loves slidey keyboard phones and upgrade her line to the Sensation and take that one for myself.
(Why didn't I just buy the damned Sensation from the beginning?)
For the longest time, I was annoyed with the trend of phones moving toward touchscreen interfaces because they lack tactile feedback—not only from the click of a key, but the feeling of the gaps between keys or indentations on keys to know which key you're pressing. I can't dial or scroll through my contacts without looking anymore and the vibration feedback won't tell me where my finger is on the screen. However, at least I have more precise voice command features, and Swype has quickly become my favorite input method for word composition.
I find slide keyboards to go to the other extreme in having to deal with the bulk and the complication of a moving part and trying to type on QWERTY keyboard with only your thumbs. It's not the same as having a full-sized computer keyboard, and I'm much faster with Swype than typing with my thumbs.
If billwinkle can choose between the MT4G and MT4GS for the same price, I say get the MT4GS and if he doesn't like it, sell it on eBay, play panel lottery on eBay for a good MT4G, and pocket the difference. That said, I think the decision has already been made.