no offense dude, and i'm not trying to be mean, but there is a whole internet, a world wide web of information, for you to use to find out the answers to the questions you post. i'm sure that somewhere on the web, is the date of summerslam, probably even on the wwe's official website. the questions you post on this message board would be more quickly and easily answered by doing a web search on a search engine, say, google.
The start-up costs of a wrestling promotion in this day and age is just astronomical. ECW was not a competitor to the WWF, not even close. It was an alternative, but it was never a pimple on McMahon's ass.