orchid_fan, as a general rule, the Maudiae type Paphs (those with mottled foliage) don't need a temperature drop to rebloom. By contrast, many of the green-leafed Paphs, species plants especially (older cultivars of rothschildianum notably come to mind) absolutely require it, while the green-leafed hybrids may or may not.
In our nursery, we experience the 20 degree or so temp drop in winter as a matter of course. The heaters are set to come on at around 58 at night, and on a sunny day, the temperature can reach 80. In other words, all of our plants experience the temperature drop, and I haven't done any experimenting with specific cultivars to determine if such-and-such a Paph needs it, or not.
I realize this orchid was a gift, but normally, your best bet is to ask the grower from whom you bought the plant (assuming it's not Lowes or something) because they'll know the conditions it took to get the the thing to spike in the first place. I'm willing to bet, however, that the Paph. you have is a Maudiae hybrid of some sort, with the mottled foliage.
Hope this helps a little.....