My only poly is in a MB and if it survives the winter will be for sale in the spring as we've not got on very well.
Funny you should say that. Our bee inspector was here just a couple of days ago, and said the same*. He bought one of these and his description of it, strictly in a personal capacity as a beekeeper rather than as an inspector, probably does not bear putting down here. He is getting rid of it too, but DOES believe in poly from the amount of it he sees in his official capacity. ( Note, getting rid of does not mean 'sell'. He says he does not ever want to see it again.) Simplicity and compatibility are the two important aspects some have ignored, either by omission or design. Some have just got too clever.
With a foot in both camps, 1200 wooden and 1500 poly on the hill this year, and now with 15 years experience of having two types in service, this is a debate I can hardly believe we are still having as not even ONCE in those years have the wooden units matched the poly units in either production or winter performance. Irrespective of my extreme scepticism (even hostility) at the outset I experimented, got startlingly good results (and had to eat a hefty dose of humble pie), and since then have increased the poly ones every year.
In Denmark a friend of mines hopes the wooden hives will never die away, he sells the owners lots of nucs every spring. Makes him a lot of money selling the surplus bees he has in the poly hives due to his miniscule loss rate.
Not voting in the poll for obvious reasons, as I am not an exclusively wooden hive owner AND as a commercial outfit who still owns/part owns a range of poly moulds. Too busy with mainstream business to be involved in selling them nowadays.
*....and not for the first time either, he was dispensing similar thoughts when advising one of the beekeepers from his patch who was looking at just such a hive at Harper Adams.