Store exclusives are hit-or-miss. I'll take a Magnus-Skywarp or a Wal-Mart exclusive Breakaway any day, but oftentimes I don't care about them. I just hate when there is a cool exclusive at a Costco or some store that is nowhere near where I live. Luckily that doesn't happen often.
Store exclusives are a pain in the arse. Do I need to import the Ratbat/Springer pack, or will it randomly show up for 50p in Lidl's in two months time?
Exclusives don't me bother me at all. The only two I've ever had a problem of finding were TRU Soundwave and Masterpiece Starscream. Sure some are tough to find, but that's just the burden of adults collecting toys.
I buy the exclusives that I find cool. Stuff like TFA yellow rescue Ratchet is a big pass for me at regular price. I have no problems finding exclusives when they are released. I live in a city where we have almost all of the store that sell exclusives. Once in a blue moon BJ's will get an exclusive(If you call a extra packed item an exclusive) and there is no BJ's in San Diego.