When it comes to investing in BIG sets it is common opinion that NONE of them will ever be a real loser. This is my opinion, too, but there are some popular big sets I think are fairly overrated and will in the end "lose" the race for becoming big investment winners after EOL. I do not intend to p*ss anyone off here, criticising their favorite sets. But as it is a common practice in this forum to tell people to "buy, buy, buy!" I thought it might not be a bad idea to make people think again about buying at least in some cases. In the end, of course, this is also to tell you my opinion on sets I just don't understand why they are being hyped the was they are - and to get to know what you think about it.
The following sets released in 2014 might - in my opinion - become disappointments after EOL (for the following reasons):
1. MetalBeard's Sea Cow (70810)
(My undisputed 1st place on this list. While I do have reservations about the whole LEGO Movie theme, this Cow imo might become an absolute grave for investors' money - maybe the only big set of 2014 you could indeed LOSE money on. Why: Ships generally have a very good reputation as investments - also for me -, my problem with this one here is that it is just "way too fantasy" and simply over the top - which worked in the movie but doesn't work for a set (you invest your bucks in). Neither is it a real ship nor a pirate ship nor is it looking like a historical one. How is any AFOL going to want this after EOL, when the movie hype is over? I mean even for fans of the movie, I don't see too many people pony up $250. Plus it is a LEGO own theme, which is ambiguous on its own already. Has there ever been a set from one of their own themes this expensive?)
2. The Simpsons House (71006)
(The main issues here for me are the price and the target group. As a set it looks quite good and accurate to the series, I think, and Simpsons fans will surely love it. BUT: besides them - who else? Furthermore the series is (long) past its peak. It might be in its 20th season but interest is nothing like in the 90s. Anyone investing 200 dollars now might not get their money back for a long time, I fear.)
3. Sandcrawler (75059)
(I don't get why people like this set: it is brown, it is clumsy, it is ugly, it has never been an especially popular vehicle in the movies. And even now while being on the market I can't imagine too many people spending 300 bucks on this thing. Not to mention post-EOL performance. Even if you see it as a play set in the first place - which it is supposed to be, I guess. It just does not convince me to spend any money on it. And by the way: I AM a fan of the LEGO Star Wars theme...)
4. Fairground Mixer (10244)
(Yes, it might be the beginning of a new summer theme and yes, it might be a cool design idea and cool to construct - but, well, aesthetically it doesn't convince me at all. I saw it built in a LEGO shop and I have to say: That thing looks even more confusing live than it does on the package. If you don't know the name of this set and you look at it, it might actually take up to half a minute to get an idea what this "multi-colored set-up" could be all about. The Mixer might be nice for kids to play, but as an investment? No.)
5. Cargo Plane (42025)
(If you asked me I'd say: Don't waste your money on this! While it seems like a good investement at first glance, I doubt this set will ever become popular among TECHNIC fans and even among European TECHNIC fans. From what I know, TECHNIC enthusiasts love construction site equipment! Not too much besides that. Anything flying is quite rare is this theme - for a reason. Have a look at the EOL-gone Helicopter (9396): For a short time people thought it would really "take off" now it is retired, but the value graph tells another story - down from $130 to $100 in just TWO months. My conclusion: TECHNIC don't fly.)
Looking forward to your opinions and your personal list!