Personally, thinking spatially I see no reason to prefer simple spaces to standard spaces.
What you call standard spaces, are composed results among what you call simple spaces, such that no amount of lower standard spaces or lower simple spaces have the power of a given higher simple space > 0.
So you do not have to prefer simple spaces to standard spaces, because a given simple space > 0 is an actual infinity with respect to lower standard spaces on it, where standard spaces on a given higher simple space > 0 (or collections of lower simple spaces on a given higher simple space > 0) are potential infinity with respect to a given higher simple space > 0.
In general, all the powers of given collections on a given higher simple space > 0 are < than the power of that higher simple space > 0.
In other words, there is a paradigm-shift in the understanding of actual infinity
[1] (that can't be known, unless one uses at least verbal_symbolic AND visual_spatial brain skills) which enables to unify all collections under the notion of potential infinity, where this notion, in terms of analysis is symbolically expressed as "n
-1 > κ
-1 > j
-1 > ... > ... 0" (where this expression can't be really understood without using also visual_spatial brain skills, in order to deal with simple higher spaces and their actual power of infinity).
The infinitely large and the infinitely small are unified by a one principle, which is the irreducibility of a given non-composed dimensional space > 0 into lower dimensional spaces on it (whether these lower dimensional spaces are non-composed (simple lower spaces) or composed (standard lower spaces)).
All of real analysis will be true of this structure, so there is no cause for concern on the part of traditional mathematics (including the dreaded 0.999...=1).
I are wrong, by using the unified framework (that can't be known without using verbal_symbolic AND visual_spatial brain skills), one enables to understand the failure of a framework that is based on the concept of collection that excludes infinitesimals, and one also enables to understand the rigorous basis (the irreducibility of a given non-composed dimensional space > 0 into lower dimensional spaces) that enables to assert infinitesimals, in the first place.
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[1] For more details, please look at
http://www.internationalskeptics.com/forums/showpost.php?p=9170466&postcount=2248 and
http://www.internationalskeptics.com/forums/showpost.php?p=9170658&postcount=2249.