I did a super, super, quick analysis, based on one hobby shop, so the results are not universal. I offer without opinion, a graph comparing mAh vs $ for NiMh and LiPo batteries they had in their catalog.
Notes:
- It's one hobby shop in my region, not across the globe. Data will like change on local availability of products
- It only shows price and capacity; no other characteristics which have already been discussed in this thread
- You too can perform analysis like this! Modern tools make it so much easier.
beautiful graph. Towerhobbies had during their clearance sale, a Dynamite 6 cell NiMH 4500 mah pack on sale for $12.77 from $39.99. Its technically still orderable, but it says shipment date unknown. I bought one to use in my Tamiya cars with molded battery tubs and so my son could safely charge it himself with a MRC 959 charger that I have left over from the old days. So far it runs great and has enough punch to get his clodbuster front wheels in the air with stock motors! I regret not buying a second pack.
Towerhobbies Dynamite 4500 mAh stick pack