Most TV shows nowadays are lucky to get one full season, let alone five. SGA had a run--I wouldn't necessarily call it a good
run--but five seasons is nothing to sneeze at.
Hopefully now TPTB will sit back and take a break for a couple of years, and hopefully let the batteries recharge. Like Trek after Voyager, Stargate could use a bit of a break. Of course, UPN didn't let Trek have that break, so I wonder if MGM will give Stargate one.