Career Up, Career Down

Recently received an offer to join another company as a Senior QA Engineer. I took up that offer, and I am due to commence work there on Oct 15th. Monthly salary will be up quite a fair bit, considering the upscale nature of my career. This I thank God for. However, thinking in retrospective, I am quite sad to leave the current cosy, comfortable, and amicable working environment my team and I had helped create in the midst of one of the world's biggest EMS (electronics manufacturing and services) companies. But again, you cannot get all without losing some, in fact, you just have to lose some to move forward. Guess I will have to drop my current position as a Supply Chain/New Product Introduction (read- Procurement) Engineer and move back into Quality Assurance. Thanks to God.