My buddy and his sister own homes north of Tustin Marketplace in Irvine.  One owns a town-home and the other, a SFR.  Both are in HOA's.  The town-home has monthly HOA of almost $200, while the SFR's HOA fee is $50.  However, the SFR's HOA doesn't have a swimming pool, club house, kid's play ground, gates, etc.
	
	Given choice, I'd take a SFR in a HOA that does have a swimming pool, and a house with decent sized back-yard that I could expand into, if needed.  It's much harder to find space to expand in a condo or town-home, unless if you're doing garage or loft conversions.
	
	Many of the homes built in boom era had wasteful floor plans.  It wasn't until very recently that I started seeing better usage of dead space (turn into closet/storage space) and additional loft options on the 2nd floor (building over empty space).  I also like the ones that convert the attic into 3rd floor-loft.
	
	I'd also suggest checking the community at night to see the parking situation.  If you see plenty of guest/street parking avail, then that's a good selling (or buying) point.  This might be irrevelent if the property has 2-3 car garage + full drive way.