Swan Teasmades are currently manufactured by NLC Services Limited under the Swan Brand label. You can buy them direct from Swan Brand below. Just click the model you want to buy:
This website has its own Facebook Group: Teasmade Love Learn Buy Sell, where you can buy and sell second hand teasmades. You can also buy or sell a second hand tea makers at car boot sales or online. For local sales, there are a wide variety of websites and apps, such as eBay, Gumtree, Freecycle, Shpock, or FaceBook Marketplace.
There are not many collectors so prices are not generally inflated, but remember, you’ll pay more if you buy in the winter, especially before Christmas. If you want to use a teasmade regularly it is best to avoid a vintage model unless you are a confident mechanical engineer or electrician. Beware of false claims of rarity or age. For example the Hawkins Classic is often advertised as Art Deco. Common models from the late 1960s to the 1980s sell for between £5 and £35 depending on condition. Models from the 1950s and early 1960s fetch £35 to £75. Pre WW2 models may go up to £150, and the very oldest and rarest may command over £200.