From what I understand, getting approval to add a site and leasing it is more costly than adding the equipment. Yes, Sprint would have to essentially do all the things necessary to add CDMA to a Nextel site vs. a new site. But there is one key advantage... there is already community approval and a lease out for the site. Adding 10K more CDMA cellsites on existing Nextel cellsites isn't very unrealistic. All the carriers have been adding thousands. Sprint now has over 26,000 CDMA sites, more than Verizon. I don't recall exactly what it was in past but 14K in 2000 rings a bell, so they have been adding many sites anyhow. Now they can add a lot more and not have to go through community approvals, legal expenses for lease agreements.