i agree, those proline's are very expensive , especially for 4 . The schumacher's are a good deal, just a shame no one has any stock of them. The pro lines do come with foams, which might explain the price. schumacher tires don't come with foams so your looking at £13 rather than just £9 for a pair. The Proline's would still cost more either way. If your happy to wait for stock the Schumacher mini spikes or full spikes would work quite well.