Cameron -- as you can see from the responses the kettleball trend has yet to land in Argentina! I have subscriptions to Fitness mags from home so know exactly what you're talking about. I have yet to see them, although perhaps there are some high-end exclusive gyms that are up on the trend? All I know is that my gym only got a swiss ball (and I mean 'a' as in ONE) about 4 months ago. They also keep it in the pilates room and don't allow anyone else to touch it. In fact, they don't seem to know what to do with it. I'm tempted to show them...
My gym has no balance boards, bosu balls, medicine balls, nothing, so kettlebells are far off. HOWEVER, they are old not new technology so maybe you're tactic should be to find a gym that hasn't been updated in years, lol!
Anyway most people here workout the same way they did in the 80s. At my gym I know that a lot of the people look at me funny when I do dynamic excercises or use the cables for something other than a strict pulldown...
My gym doesn't even have a decline bench... it is a pretty sucky gym even though it costs 90 pesos a month (I refuse to pay megathlon fees). I have had to modify my workouts to fit with the equipment they have. You can get pretty creative and manage to do a decent workout even without the same equipment as you might find at home.