HTC — Desire V-phone not starting

Address:

Pune, Maharashtra

I have HTC Desire V phone taken 2years back and the WORST phone I would say. My phone restarts every 30 minutes. DATA gets erased. After the purchase its mother board got damaged, and now its DEAD. NOT STARTING AT ALL. The service center says it would take[protected] rupees to get the new mother board.
If this is the case why would anyone go for repair it rather taking new phone. AND NOT HTC.
I will not recommend my friends to go for HTC phones At ALL.