Boschlover - The Titanium models feature a Fibretech tub - this holds in heat better, and is stronger plastic than a standard washer tub. The Titanium is also stronger metal than Hotpoints other drums, which means there is even less chance of it exploding on a spin. Titanium also doesn't allow Limescale to cling to it, unlike stainless steel, meaning the machine is always* clean.
*of course odurs still develop if using cold wash, not allowing machine to dry out properly etc.
Optima, have you been told, as you work in an Appliance store, Hotpoints are discontinued?? I am sure you will provide an answer. From the Photo, looks like they're all in stock still, so can't be discontinued??