AFR gauge with o2 sensor worth it or not?

I bought the innovative wideband O2 sensor because I have two carburetors and I needed all the help I can get. It was like 209 or something at Summit and I found it on eBay for 159 and ask Summit to price match and they found it for 149! I said send it. It has all the capability for logging and all that stuff but from what my research so far is found out the hardware for the logging can be quite expensive. I just use it as a tuning tool and something to watch. It was easy as pie to hook up screw into the bung, hot wire, and a ground and done. I think YR could do it within about 14 months LOL