Whilst in some ways an increase would be a good thing in certain terms in regards to paying top players a more competitive financial package the negative aspects far out weighs that.
Jake is correct in his post with regards to his brief outline of the caps in the NRL & RU etc.
If the SL was awash with riches then I could see the real benefit of increasing the salary cap but the facts are if it wasn't for the TV money the clubs receive then top players would be lucky to get £1K per week. Unfortunately we can not compete with the NRL both financially or with the chance for a player to test themselves at the highest level. RU whilst not necessarily well attended at club level the level of income from TV and sponsorship etc is again something the currently SL can not compete with.
The last season or so we have seen he affect of the salary cap in that it has brought SL clubs closer in terms of results and it is now a much more competitive league than it ever has been with any club being able to beat another. This is what should the club s & RFL should be using to market the sport.
Facts are SL is not the same level as Football, RU or NRL financially and similarly being a salesman in a vauxhall dealership doesnt have the same level of earning potential as a salesman in say Ferrari or Mclaren dealership even though in essence its the same job.
Until there is a better set up all round in academies etc where young players are produced by all SL clubs on a regular basis the sport will be prohibited in getting any better.
Maybe the marquee rule could be expanded but when many clubs are not financially cash rich it would be detrimental to the sport to go back to money talking and one or two clubs dominating. Bradford being a prime example of the very real scenario of the big negative.