I'd like to think I'm a good Dell customer, in the last year I've purchased 2 desktops a laptop and ordered a 2nd laptop on 3/3. I just received an email that my order is going to be delayed until April, and looking through your online reviews this appears to be a big trend. 

I purchase equipment from you because Dell has been a company that can be depended upon to provide a good product at a decent price in a good time frame, if this is no longer the case then it may be time to go with another provider. 

An explanation of WHY the order has a multi-week delay might be a good place to start, vague excuses with this type of delay are a horrible customer experience.