Haha okay I can empathize a bit with the OP. Well, sorta - i'm not exactly sure what he meant, especially as he referred to breakfast...
However, i've been a Marriott platinum for many years, and there really aren't as many interesting, exciting properties to try out as compared to a program like SPG. So my 'strategy' to combat this was to move the first 25 of my stays for this year over to SPG, get Plat there, and have a bunch of points. Now i'm staying at Marriott for the rest of the year so I can keep plat status, but if you think the chain is boring... try another? Seems obvious.
I like Marriott - good, consistent experience, but... i do agree that they are a bit "boring" from time to time. But I'm halfway to lifetime plat so i ain't stoppin!