What's everyone's opinion on keeping your Hasbro or Takara MasterPieces MISB or opened and (carefully) played with/transformed?

I've only got a few MP's but I'm unsure what to do. I've opened my Hasbro Skywarp and was very impressed with him. Fantastic engineering in my opinion and is just amazing even though it takes me 15minutes to transform him. And I picked him to open because I can easily get another MISB from my local store and he was my first MP. However I have Hasbro Grimlock and Starscream still sealed and also 20th anniversary Prime MP sealed (The 2004 one) MISB. I really want to get them all out and pose the s%#^ out of them BUT I'm a bit of a MISB/MOSC kinda guy....

What's everyone else's thoughts/opinions?