Yes, the Davis range are great stations, but they are NOT cheap.
A fair number of people on here are using the stations from Maplin, and when they are on special offer, they are around the €60 mark, and the offers come round several times a year. They are made by a company called Fine Offset, and can be run without being connected to a PC 24/7, and will store readings for upload to a PC. The Sandaysoft forum has software that is more capable than the standard software that comes with the station, and for amateur home type use, where nothing absolutely depends on the results, the combination of the 2 is not bad.
No, they're not as reliable as the Davis, and they can have problems with reliability, but the spares are cheap, and the end result is pretty close to the results that the Davis will give, with a bit of DIY care with the set up and a few tweaks, the results are very similar, its all part of the learning curve.
You will get several Maplin stations for the price of 1 Davis, the end result may well be that you've not saved much, and there are some specialised sensors that are only available on the Davis, they are not essential to weather watching, depending on your success and how long you stay weather watching, the initial outlay will be a lot less, which may make it more attractive.