Hey Dave, I grew up in the 70's! I'm not sure you can tell me to get off your lawn. ;)

Ok, maybe you can. But, I'll defiantly stand at the edge shaking a fist!

Joking aside, a lot of solder these days is going lead free. The stuff being used these days has a higher melting point. This can be an issue on something like a motherboard. Its densely packed and has multiple layers. All of those layers are trying to dissipate the heat you're trying to apply to one component. Sit there too long and you can start damaging things next to the component you're trying to replace.  

You need to get in, heat something up quick, and get out. The hot air station did the trick.

However, this was an edge case for me. I get by with just my soldering pen 99% of the time.