I agree with SP.
The R11 are a good buy if you get them right when you gain access, especially if you aren't playing enough daily to advance quickly on a calendar basis.
IMHO, the L59 Pings are worth it. I haven't played the L52 Nike's as I went from the L32 R11 to the L59 Pings.
If you don't want to spend money on two sets so close to each other I would hold out for the L59 Pings, their high ball flight will let you pull off shots you can't with the medium trajectory clubs. The only downside is you will notice a larger influence from the wind but it isn't anything you can't get used to.