I just had a pre-buy inspection done on my 152 by the assistant mgr of Lowell City airport (24C) near Grand Rapids and he mentioned that their t-hangers run in the $150 per month range,,,,maybe less IIRC. My large t-hanger with an end unit run's $120 a month in Gladwin (KGDW) and its a new modern hanger. Livingston County (KOZW) where I will be basing my -10 runs $265 per month and they are also t-hangers in decent shape. Oakland County Troy (KVLL) runs $315 per month for t-hangers. When I based my 152 at Brighton Hyne Field (45G) a private airport, I paid $200 per for a newer t-hanger. My son was paying $175 per at Canton- Plymouth-Mettetal (1D2) for an old junk dirt floor sliding door t-hanger and the newer tee's were around $350 and there was a very long wait if you wanted one.