Time is always the enemy. I have Opel Manta 400, Celica TA64 GpB, RS1800 still to build amongst 15 kits at least in my stash.
Lancia S4 and Quattro will be more compulsory buys but at least I will have them.
The only thing that annoys me is the price of decal shts and tune up accessores. By the time you buy painting materials there is a bit of money in 1 kit nowadays, but the quality and subjects are very good.
Belkits and Aoshima rally kits are excellent and hopefully sales will support more of them.
I wish uploading and posting was easier.