These are two completely different animals with much different players. The one thing that hasn't been mentioned so far in this thread is forced appreciation. The scale of which you can force the appreciation on a commercial property is so much greater.
We must all remember that commercial property derives it's value from it's NOI and cap rate. This allows someone like Omni Property Companies to purchase a distressed office building, re-tenant it, add value (rents), increase the NOI and sell it for significantly more than what we bought it for.
VERY simplified example:
1 Single Family Home
Rent: $1000/mo
Gross Rental Income: $12000
Annual Expenses: $7200
NOI: $4800
1 distressed office building purchased for $1,000,000
NOI at the time of purchase - $100,000
CAP Rate - 10%
New leases that add $20,000 to the NOI
New NOI - $120,000
New Value of building: $120,000 / .10 = $1,200,000
Voila you just increased the value of this building by $200,000 by simply adding $20,000 to the NOI via lowering operating expenses, signing a new lease, raising rents, etc.