My first 50 and main character was a Mind/FF troller. At first I lamented the fact that there were no pets for this character. But as I got other petted trollers to 50 and played the endgame content - incarnate stuff, etc, I decided that pets really were pointless. Either they are somewhat durable but did little damage, or they were so squishy that they were not long for the world. So I guess it really depends on your play style.