That's a BIG "if." How many people honestly get maxed total levels? Very few. Yet slayer is frequently tossed around as the most effective way to train melee for anyone. Look at any random thread asking for help with combat training just from some random dude who is clearly not going for 2376 total, and slayer is probably suggested more than once as the best way to train. And it probably is for an average random dude. Most likely they havn't done defender of varrock and don't plan on it anytime soon...reqs are long for most people, especially if they are just interested in combat lvls rather than questing. Then there's the fact of different monsters, more variety, teaching them about different monsters, how to kill, how to get there, and whatnot. Instead of some lvl 138 who's only killed armoreds all his life. Its admitted that slayer is less than the zombies, (though i'm not completely in agreement with the profit part) but even so it is decent enough exp, charms, and cash. And ofcourse there's the all to powerful lure of that super rare drop you couldn't get anywhere else. Really can't be resisted. If infact slayer isn't the best way to train combat, it come in for a close Bush/Gore 2nd! Nuf said.