Anyone used to high-pressure spray guns has been spoiled by the ability to crank up the air pressure for atomizing stubborn coatings. The latest HVLP turbines put out almost 10 p.s.i. of atomization pressure, much more than older units. This in turn gives a finer finish with less reliance on the coating to flow out. Manufacturers are also including more stuff with their machines, items such as extra fluid sets often come in the box or as part of a free promotion. Having the correct fluid set on hand versus a general purpose set makes a big difference in getting the right amount of product out of the gun.
New sprayers are also more comfortable than older designs.
The guns now have better air passages and insulated handles to prevent heat build up. If you are unhappy with the way your sprayer works, look into one of the new ones. You'll find that they have become better than ever.