Despite of expensive parts, people will still use these bikes because the 70cc category bikes are like disposable bikes. they are cheap and come with cheap quality. when u buy their parts from market, the shop owner will tell that this the best quality parts and is Japanese quality but still u end up buying a local one. i remember i had a CD70 1992 Japanese model and i got its first engine overhaul in 2001 which happen due to oil pump issue. i used original parts and after that i sold the bike in 2010 and the engine was still strong. at that time i got the engine overhauled in 7k and if i have chosen the Chinese parts, it could have costed my 3.5k.
With the setup of local industry for 70cc category bikes in Pakistan, approx 22 companies were closed in china who were making the same bike parts. this is a major shift but as Pakistani public we are not "honest". we dont wanna produce quality parts and make max profit. as a buyer we dont wanna buy expensive good quality parts.
for those who dont wanna get their heads stuck with mechanic will surely buy bikes which last long just because the quality of parts used is good.
Moreover Suzuki and honda will pay a handsome amount to GOVT to make sure they sell their 110 & 150 category at prime prices. just like they do in Cars market, making it difficult for new entrants.