Yes, I know, a 9W!!!! I also have a 7W, but don't actually keep it my bag (that was my $35 ebay find). But keep in mind, I'm a girl. And I do have hybrids - 2 of those currently in my bag. I use those out of the long rough. (Believe me, I'm one of the biggest "women" club ho's you will find - so equipment is not the issue. I think it's my swing - no, I KNOW it's my swing. )
I think the problem for me is my swing speed is so much lower than you guys - those clubs with the longer shaft take more precision to hit properly. I seem to have the 9W down. It's easier for me with the 5W off the tee (but forget it trying to hit that sucker flush in the fairway). My driver, even though it has a long shaft, it also has a huge head (Callaway FT9, 13 deg) and I get to tee up the ball - which makes striking it easier.
I guess my point was play what you are confident in and comfortable with. I'd rather have a half-way decent or good shot than a bad/horrible one (I think every golfer feels like that.) And if it means that bench the driver and go with the 3w, why not? For me, there is no 3w. It's just my driver. I've actually used my driver (choked down a little) on par 3's. (I know - insert funny comment here.) However, that choked down driver got me closest to and $50! So, I'll take that!