Is it just me or does everyone change thier grow setup CONSTANTLY!

Well just when I got comfortable with my setup I realized that Iam gonna need HID to flower. I had 40600 lumens of red and blue CFL light but I ordered 600w HPS and now I gotta change the setup I bought new ductwork and inline fans of course and Ill do away with the old tent like mylar structure around it.And the reconfuckingstruction begins again. I enjoy DIY shit and I probably aint gonna be happy till I have a multi million dollar grow op. But I was wondering if anyone else is in constant change of setups?

I've been doing this for a little over 3 years and I have not stopped changing things yet.