Just an example, $50. for a 5000 3s LiPo (25C)
http://www.hobbycity.com/hobbycity/s...0mAh_3S1P_25C_
$43. for the 20C one
http://www.hobbycity.com/hobbycity/s...0mAh_3S1P_20C_
A123 can be reasonably affordable if you are willing to build them yourself. Single cells are available for $16.95 apiece (for a 2200mAH cell). The big problem is the awkward size, they don't really fit in the standard compartments very well.
There's no need to argue, everyone can be happy in their own right. If you don't want it, don't buy it. But don't build up your own straw man just to try to prove a point. LiPos became cheaper than equivelent NIMH packs last year. And now with both Traxxas and HPI, the rest of the manufactures could be scrambling to try to get their own 'me too' products out there.
Also for an example of charge rates up to 5C
http://www.neumotors.com/2008/Root/S...ery_Specs.html
http://www.amainhobbies.com/product_...ducts_id/33002
"Unlike most other Lithium Polymer batteries, these batteries can be charged at up to 2 times the rated current, or 2C! If your charger is capable, you can charge these batteries at up 9A!"
A few other manufactuers also claim 2C charge capable batteries in their documentation.