Does the RM100 keyboard *FEEL* like it's only RM100 when you play it?

Taking up a musical instrument means hours and hours of practice. Everyday. well, maybe not that much. But if you cannot put in at least 30 minutes every day, might as well forget it ... few people take it up as an adult. I'm guessing there's two possibility. (1) unlike kids, adults have to work and take care of their family, and don't have the time (2) 3 months down the line when the kid is sick of the practice and wants to quit, mom and dad forces him/her to continue. "I've spent so thousands on the instrument and music classes, and you want to quit?!." After 3 or 4 years, the kid has enough skills and momentum to go on. Adults find it harder to get over this hump because there's no one to force them over it.
Digital piano/keyboard - you can use the earphone and practice at night. Acoustic piano - loud and disturbs the neighbours. Especially if have to practice at night, after work and dinner. But not as much as if you were to take up a drum set. That's for if you really hate your neighbours.

I'll say piano is probably easier, at least for the first month. Press a key, you get a note. It's not so simple with violins.
Why do you want to take up an instrument? To play by yourself? To jam with your friends? AFAIK, there are very few songs for the single violin. OTOH, violins are portable, and pianos are not. Which may
or may not be a good thing.