I think from my own experiences in the last two years, Randa is very right. You need to make sure to check out the prices, and if this trailer is the one you want to keep for a long time.
I have had the best of luck buying my trailers from the States. I found the price to be a lot cheaper than purchasing one up here.
As I have found this year, my trailer had everything except that extra stall. I am having to sell my trailer because I was unsure at the time of buying it if I would need a three horse or a four horse. Now I realized I should of gotton the four horse, as my boyfriend usually packs two horses and I do as well. I also know that the extra storage space is a huge factor for the horses and us as well.
Good luck shopping for that special trailer!