I want to buy my two a new cat tree - as I worry they get bored being indoor cats and their one seems small. This one caught my eye: Gingerbread XXL Cat Tree | Free P+P on orders £25+ at zooplus! But then I saw this slightly cheaper version (tho it is smaller): Gingerbread House Cat Tree: Free P&P on orders £25 or more at zooplus! Is the XXL one deigned for the bigger build cats e.g Maine coons etc and the second one for 'normal' sized cats, or for kittens? I don't want to purchase the cheaper one and be disappointed as it was so much smaller and not designed for adult cats so to speak. But then I don't want to waste my money on the XXL one when it is meant for bigger build cats. Their current tree is just a tad too small I think - even tho they do use it happily. I have 2 moggies between 4-5kg aged 1 years and 2 months.