It IS a perfect system, becourse there isn,t one ASIC hanging on the chain yet in amounts that could be dangerous for the system  and the system is now protected by the (mostly) GPU en FPGA rigs..

So as long as there is a lot of talking en theories about ASIC nothing happens ..look at some quotes from september/oktober 2012 lots of theories about the hashrate would (for sure) be 100th and al kind of predictions IF ASIC would hit the market...wel here we are today hashrate still between 20000 - 25000 GH vs 3000000 Diff BTC@ $19,- very good news en numbers for Gpu miners who now really building big stacks of coins even due to halving day its very profitable if you started building a farm 1 year ago, even 1/2 year ago...

So in theory IF ASIC keeps delaying this makes gpu and fpga farms ROI even better, also keeping out the new people finding out about BTC mininng who will not throw 10k in a new GPU rig at this moment..they just wait (good thing for miners with gpu/fpga) or pre-order some non proven devices becourse they think the now shit..maybe the ASIC guys run big GPU/FPGA farms or mining pools and waiting to ROI them by keep delaying the new ASIC..could make sense to me after al these Bulsh!t like bASIC, Avalon ( we will now very soon) and ofcourse BFL Labs.

Good luck the system will be safe, your pockets could get empty believing the wrong people...but he whats new about that...??