I've dabbled in a few comics here and there, but practically zero Transformers material. I think it's time I changed that. I'd like to find physical collections or omnibuses, but have no idea which series to read or what format to buy comics in. Digital comics are okay too, just not preferred. I think I'm interested in IDW? What comics involve Megatron becoming an Autobot, Cyclonus & Tailgate being a couple as well as Chromedome & Rewind/Eject? I looked into Comixology, but it seems their Unlimited membership is only available in the USA which doesn't work for me. Is Comixology still worth it? Are there physical collections of comics out there for sale new, or would I have to track down used copies? Should I look on ebay, or are there other sites better suited to buying comics?