Hello guys, I need your advice. 
My laptop - HP Pavilion dv9700
s/n: CNF8291SZD
p/n: FM625EA#ACB
After 13 months of perfect working, once it refused to turn on. Fisrt I was working from battery for a couple hours, then battery was low, it switched off and since this it is dead ( I went to the service centre and they checked it briefly and told me - it is a mother board problem. I went to another service to compare prices for MB replacement, but I was told there that it is worth to buy a new laptop than to replace this MB, because it tends to fail again and again in the future. I don't want to buy a new laptop, because I liked mine and I don't have money to buy the one I would like to, as a replacement for this one.
Could you please tell, whether those MBs are really that bad that it's not worth to replace them?
Thank you.

My laptop - HP Pavilion dv9700
s/n: CNF8291SZD
p/n: FM625EA#ACB
After 13 months of perfect working, once it refused to turn on. Fisrt I was working from battery for a couple hours, then battery was low, it switched off and since this it is dead ( I went to the service centre and they checked it briefly and told me - it is a mother board problem. I went to another service to compare prices for MB replacement, but I was told there that it is worth to buy a new laptop than to replace this MB, because it tends to fail again and again in the future. I don't want to buy a new laptop, because I liked mine and I don't have money to buy the one I would like to, as a replacement for this one.
Could you please tell, whether those MBs are really that bad that it's not worth to replace them?
Thank you.