Nitro does interest me but having never used one before I don't now how easy they are to race/set up and maintain.
Electric cars do seem simpler to operate and there is the bonus of using them indoors. The trucks do look to be a fun and interesting class.
Price difference between the 2 is minimal for the models that I'm looking at but I've no idea on long term costs. The lower the better
Found this as well which looks interesting:
Kyosho Ultima SCR