Yep...it doesn't take long to build up a good stash of model kits or a collection. Other than for storage issues that might come up if one has a large stash,the good thing is you always have something to pass the time which since my accident I have an abundance of. If one enjoys what their doing and depending on the amount of time one has to pass a large stash can be a good thing. Me I usually build about 2 to 3 a week taking my time with them but I also have the time too. Some special builds do take a lot more time...restorations,conversions,modifying,detailing,etc. but out of the box builds seem pretty quick for me beings I am normally a factory stock builder but do build others as well.