Yeps, as I said, I felt that I was doing less design and more system integration or "lego building". Besides, I had been doing that for many years and I thought a change was due. From my description it may seem that FPGA is monotonous... that was not my intention at all. For me, FPGA design is much more challenging and fun than board design never was. The downside of FPGA design is that human contact is much more limited.

You cannot really receive answers for your questions, because most of these things are subjective. You have to make your own way and make your own experience. Experience, after all, is the comb you get when you have no more hair ^^