Just a FYI for some of the newer members. Some of them might even be reading this thread without posting.
What I'm about to type is just my opinion through Lego and other investing. My experience is from the Toy Story, City, Monster Fighter, and Cars theme.
You will notice that some members bought Lone Ranger sets at a very low price (say 50% off) and they don't mind holding onto LR sets.
This is good advice but you need to see what works for your portfolio and strategy.
Myself? I give pretty much all sets 1 year to appreciate from MSRP (aka retail price) and not the price I paid. MSRP is a far better indicator of growth since everyone will have one common baseline as a starting point. Additionally, the highest 12 month ROI % is 99% of the time during the first year. Then the 2nd highest 12 month growth period will be the 2nd year.
Note: MSRP will vary by country.
Now If I see good growth during the any set's 1st year after retirement, these sets will be held another 1-3 years.
So what do I do with sets with below avg growth (from MSRP) during the 1st year? (For example, the 10227 UCS B-Wing which sold got $199.99 MSRP and appreciated to $215 (or so) after 12 months. ). I usually sell most if not all of these sets since the money can be used elsewhere (also known as opportunity cost of keeping something). (
I ended up selling all my 10227s which allowed me to buy 10224 Town Hall, 10226 Sopwith Camel, 10228 Haunted House, and Arkham Breakout sets. Thus...
So please follow your gut and invest to match your strategy. Don't fall in love with sets or wait too long for them to appreciate from MSRP since "they are other fish in the sea).
Happy investing and new year.