Should I thin out my collection?

So, I was looking at all the carseat pics of Sofi on my blog. Kind of comparing them. Thinking maybe I should sell something. Here is what I have and what their use is....

EFTA- Dad's car, must keep
BV and MA- Grandparent's cars, must keep
MR- currently in my car for Sofi. I plan to use it for BabyS when she outgrows other seats by height or weight. I like the SIP and cup holders for Sofi right now.
TF- sitting in the closet. I was going to use for Sofi. Until I bought the MR. MR has better SIP (purely my opinion). I could use it for BabyS when she moves to convertible, then when I have DF's DD I can use it for her, and not install another seat.
Titan1- currently in closet. I have fond memories of this seat. Sofi's first convertible, and I really liked it when we used it. If I didn't like the SIP of the MR better, I'd put her back in it now I was going to use this for BabyS before I decided to use the TF for her (DF's DD is too tall for it).
Titan2- Sitting in Grandma's basement. Bought (and therefore technically owned- thought I could likely do whatever I want with it, since I own the BV and MA) by grandma. Switched to BV when we thought the Titan was outgrown.
Uptown- Sits in the closet. Sofi seems squashed in it. Had planned to use it as a back up seat (before I ended up with so many extras). Currently loaned to neighbors while we wait for more MR cover options.
2 Sceneras- Sitting in closet. Plan to give 1 to MomBoss for travel seat for BabyS. 1 is 2005 DOM and 2nd is 2007 or 2008 DOM.


I need to have at least 1 extra seat. Because if I don't, I'll feel the need to buy another (and I'm fighting the urge to buy another MA because it's an easier to install back up, and I have too many covers). I'd also like to have an extra incase someone needs to borrow a seat (I have a Cargo for an extra/lending FF seat).

Should I sell a Scenera and Titan and Uptown? Or sell 2 Sceneras and a Titan, and give the Uptown to MomBoss for a travel seat?

Here are the comparison pics of her in the seats. All are pretty current, except the Scenera. She's had a growth spurt since then, but fits it about the same as the Titan. http://carseatnanny.blogspot.com/2009/04/sofi-in-her-many-seats.html

Yeah, I think it would be okay to do a little thinning

lol, but the question is, which seats to get rid of? And I know my OP says 'sell', but some (like the 2005 Scenera) would likely just be donated.

And with the TItans.... I'd rather keep the newer one (grandma's) but like the cover better on the older DOM (though they both RF to 35 FF to 50). But the newer cover has the SIP logo. So I can't just switch the covers, can I?

I would get rid of the Uptown beacause Sofi does look squashed and also one titan and one scenera. Keep the other titan as a spare seat, give Scenera to MomBoss. You will still have one Titan and the TF as a spare, along with the FF seat for lending. By the time Sofi has outgrown the MR Rfing, you will have something new in mind for her FFing and will have added to your collection.