sub+satellite or full range?


what are the advantages/disadvantages of full range speaker opposite to subwoofer + a good quality speaker? for example, a wilson WP against a pair of cubs + subwoofer.

Im asking because subwoofers are in almost all houses now and this maybe let us rise the WAF with smaller and less obtructive spakers without loosing quality?.
Thnaks in advance
jorsan
Bass does not load in a room in the same plane as the mids/highs. I have a large room and always used sub/sat systems. Now I use Magenpan 3.5Rs with SVS powered sub. It's awesome
A Sat+sub is a great WAF friendly option. If you wall mount the small satellite speakers the wife may be even happier. They can sound very good but integration can be a challenge/headache so I'd recommend you go with one manufacturer for sub and satellites.
Thanks to all; more or less your responses pointing the same way: we can build an equivalent quality with sub/sat if takes care of integration between sub and sat mainly.
Thanks
Monitor Audio R90 sats with the R360 sub are quite good, affordable, beautiful in Rosenut (both sat & sub) and have a very high WAF. Nothing to sneeze at.
"Subwoofers are in almost all houses now." I bet to differ. I would be that if you polled American households less than 15% have subwoofers.