Indeed it is 
I am not an expert on this matter but I would check eventually if you have any I/O contention and the overall perf of the view env. If the values are acceptable, if you don t have any complains and if you don t expect to grow 150 % and move in house machines to zero client for exemple go for the SAS storage.
We have remote and in house already and my goal is to get rid of all desktops and replace them with zero clients. We don t have unlimited budget neither and it is a bit of total space vs perf.
Keep in mind that having ssd's underneath won't make you view machine fly like crazy once logged in. Of course they might boot resume a bit faster, provisioning and recompose will for sure be faster but if you don t have any perf issue at the moment going for ssd's might even be unnoticed by end users and you might end up with someone asking you why did we go for this ? My View session is not any faster ... (Heard it already). The SSD's lifetime limit thing also won't apply to you I think as you need to write quite a lot on those drive before you have to start thinking of replacing them. I might be totally wrong but I remember a Dell rep talking about an average of 25Gb / per for 5 years.
Hope this helps picking the right decision
Seb