i'm looking to buy an elliptical machine but i'm not sure on what to get. i went to a fitness equipment store called nellie's. they had proteus and sportsart in stock. they told me they can get any brand that i wanted. they have a light commercial proteus (proteus eec-7088) for $1199, but i haven't heard of that brand. the lowest priced sportsart was the 803p, going for $1799. would anyone advise getting a lower priced model (below $1000) or do i need to spend quite a bit on this?