DrAzzy:
get with the times, nobody uses through-hole parts these days
Of course... if only film capacitors and electrolytic capacitors were available in SMD... or SMD offered the same mechanical strength as THT so you can unplug connectors without risking ripping them off the board... I'd be happy to do my boards in SMD-only.
But as long as PP (~170°C) has a lower melting point than solder, and PETs melting point (~260°C) is about the same as tempereatures used in reflow ovens, those caps will come out of the oven looking like a gooey mess on the inside, and we'll continue to have to use THT mounting for those.
SMD does make assembly easier, indeed. Unfortunately reality gets in the way of doing everything SMD.