Considering a New Dell for My Birthday

I adore my Dell Inspiron 3510 laptop, but I have been disappointed by its flimsy case, specifically the fragile screen hinges. Unfortunately, they broke just eight months after I purchased the laptop, and although they were repaired, they broke again a year later. As a temporary fix, I secured them with strong silver duct tape, which has held up reasonably well, although I find myself having to re-tape it from time to time. Considering my positive experience with Dell in general, I am now contemplating investing in the 3550 Latitude model, which is priced at approximately $640. I would appreciate hearing your thoughts on this particular laptop.