Lukey, my point is there's no option for PSLR1 Aero wheelsets for 2014, or am I getting disoriented in the brilliant marketing ploy!
Actually there are. I think you are getting a bit confused with the 2014 lineup. The 2014 Propel Advanced 1/0 feature the new 2014 spec PSLR1 Aero wheelset so they can still be purchased on Propels. Its only the full race spec integrated seat post aerobikes that won't have them included unless you want to buy them separately with the frameset
Propel Advanced SL Series
Propel Advanced SL0 - DA-DI2 11sp/Zipp404 wheelset/Aerobars-intergrated stem
Propel Advanced SL1 - DA-Mech 11sp/Zipp404 wheelset/Aerobars
Propel Advanced SL Frameset
Propel Advanced Series
Propel Advanced 0 - U-DI2 11sp/PSLR1 Aero wheelset
Propel Advanced 1 - U-Mech 11sp/PSLR1 Aero wheelset
Propel Envie Series
Propel Envie LIV - DA-DI2 11sp/Zipp404 wheelset/Aerobars-intergrated stem
Propel Envie Advanced 2 - 105 10sp/PSA or something IIRC wheelset
If the wheelset is so brilliant, why dump it and put a more expensive wheelset on?
The Propel Advanced SL series are now the top of the line/flagship model bikes where they are aimed at people that are looking at upgrading their kit in running spec and primarily use the bike for racing. Its a great bike for racing but it has a very aggressive and stiff setup for day to day/cafe racers and that's purely down to the frame having an integrated seat post for its aero profile. The SLs only come in DuraAce running gear, they feature the aero stem and handlebars and come with the Zipp wheels. If someone wants to upgrade to a Propel Advanced SL but don't have the 8.5k+ to drop or already have their own wheelset there is the frameset only option so that can cater to their budget and their current setup (eg wacking on your own wheels/10sp DuraAce-Ultegra gear etc). The frameset only option was not available with the 2013 model bikes meaning you had to fork out money regardless of what you wanted. It was even worse if you were running a 10sp system as they only came in 11sp. Because the Propel Advanced SL series are purely aimed at road/crit racers they have bridged the gap for those wanting to get into racing on a cheap budget along with catering for those that casually ride/aren't involved in racing/cafe racers/those that aren't as flexible and want to change between an aggressive or soft setup. That's where the Propel Advanced 0/1 comes into play. For under 5k you can have a Propel Advanced 0 with 11sp Ultegra DI2, the 2014 PSLR1 Aero 50mm section wheelset, the same aero profile as the SL but with a adjustable seat post. Around 4k for a Ultegra mechanical option.
The 2014 Propel Advanced 0/1 framset are the exact same bike and I mean the exact same bike as the 2013 Propel Envie frameset. The only difference now being running gear and the livery. The 2014 Propel Envie has gone down the same path as the Propel Advanced SL's. The Propel Envie Advanced 0 has been replaced by the Propel Envie Liv. Its still the same frameset as last year and this years Propel Advanced 0/1 but it has Envie decals, has a deep purple/gold/black livery, 11sp DuraAce DI2 groupset and Zipp 404's - basically the same as a Propel Advanced SL0 but with an adjustable seat post. That'll set you back 10k while the Envie Advanced 1 will set you back about 3k.
I suspect it is because Giant have had issues with their wheel supplier QC, so to burn them, Giant went off and haggled a 'giant' discount with Zipp, who are no doubt feeling the cold of the first world economic downturn!
Who really knows but it would have more to do with the current line up of bikes. 2013 only had 3 or 4 models (SL1/SL2/Envie 1/Envie 2) of the Propel available in Australia (I can't recall ever seeing or hearing about the Envie Advanced 2 being available here). 2014 features 7 models of the Propel including the SL frameset now being sold on its own. Cervelo have done a similar setup with the S5 bikes aswell.
I agree the PSL1 (non aero) wheels are just plain crap but the PSLR1 Aero wheels are pretty good. Not the best wheelset and can really be a wild bike to handle in crosswinds but still pretty good.