So apparently my N3DS XL has suffered some major damage and the cost for repair is nearly equivalent to buying a whole new 3DS. The last shop I sent my 3DS is Heavy Arms. They told me that the screen and possibly motherboard damage and thus, it's probably in a bad shape.

My questions are,

1) I was told by Heavy Arms that the repair cost will possibly go up to RM850. Should I still try to repair this console by perhaps finding someone who is able to do the repairs for a cheaper price? If yes, are there anyone who is able to perhaps save this console or should I proceed to (2)?
2) Are there any shop(s) that accepts my console as trade-in for them to salvage spare parts? I am hoping to at least make use of what's left of my console as it is quite disheartening for me to just throw the console in a corner to gather mold and rot.
3) If I do decide to get a new console, should I still get back another 3DS? I heard rumors that Nintendo may be announcing a new console sometime this year but I still have leftover games I would like to enjoy on my 3DS. Or is the service life of 3DS ending soon (something like PS Vita? I forgot the correct term)?

Thanks in advance.