if u satisfied with it.. why not..
not to say this phone not good.. but let say u have this phone.. and play next to someone who got a new android phone.. maybe u'll get jealous on em..

well.. there still got lot of "cheap" android which is below RM1k.. and with good specs..

true true indeed. U can try to search around for a second hand@grade 'A' condition of G1. It's around RM480
It depends on the ROM. Some rom is buggy and some is fully functional. U need to try it out. Forget about froyo coz gingerbread custom rom on g1 is a lot faster than froyo custom rom 

But, it's still a G1 (low end device). So just don't expect too much from it.