LOL some people really think a power conditioner is just a rack mounted power bar.... I even saw a video on youtube where a tech for one of the pro's says this.....BUT he still uses one to protect the rack.
Not to be rude, everyone is entitled to their own opinion but hell, do some homework guys. Sure if you buy the cheapest one, obviously you get a rack mounted power bar. Just like the AXE FX II and a Good FRFR you get what you pay for, and the level of quality increases the higher you go.
Even in a studio, a mid range power conditioner will keep any noise from computers, lights, or wifi from messing your recordings up. A small almost unnoticeable hum will get amplified over multiple tracks and its way too late at that point. Use a power conditioner or 2 and problem is solved.
Also, the majority of us that play out, are playing clubs, bars, pubs, etc, and these places don't have any regulation for their power. Are you comfortable plugging your Axe and Amp into a shared outlet with VLT's or a bank machine or even lights? What if your playing in a building thats 70 years old, does it have original wiring and fuse box? And theres a lot more "what if's"
My answer is spend a little money, have peace of mind, noiseless clear buzz/hum free sound, and never worry about it again.