Hi there,
I have been to
Paris a couple of times myself and it is a wonderful place. However, with $150 (which is around 115 Euros) it is a bit to little even for two days considering the costs of getting a taxi to your
hotel and back, two nights stay in hotel, food, so on.
No matter where you stay near the
Eiffel Tower, being right in the capital, you are looking at around $90 a night in a
Bed and Breakfast, plus other costs such as dinners,
getting around, etc.
Some of the cheapest hotels are Ajiel Hotel and Yllen Eiffel Hotel within walking distance of the tower.
Hope this helps
VacationBuddy